# magnetic field questions and answers pdf

The concept of a magnetic field around a current carrying wire is explored and a simple method to determine the direction of the magnetic field for a current carrying conductor, a looped coil and a solenoid is explained. The magnetic field is 0.2 T. If … Magnetic field Answer 5 The circles with dots show the magnetic ﬂux vectors coming at you from out of the paper. Forces in Magnetic Fields (Questions)..... 52 Forces in Magnetic Fields (Answers ... A Comparison of Electric and Gravitational Fields (Answers) Answer outline and marking scheme for question: 1. a) 2i) F E proportional to 1/r2 or F E = Q /(4ðå 0 r2) or in words ii) F G proportional to (-) 1/r Then magnetic field is along z-axis. A potential difference of 4.0 kV is applied across the plates. Zero c. Unity d. None of these 26. Magnetic fields are strongest at the poles. The bar magnet has (a) the dipole moment (b) monopole moment (c) (a) and (b) both (d) none of the above . (ii) How does a compass indicate the direction of a magnetic field? They found that certain minerals can attract pieces of iron. • Removing the piece of iron from the magnetic field will remove all/most of the magnetism. Why does the compass needle normally point North? In 1994 I published the first edition of Questions and Answers in Magnetic Resonance Imaging, a collection of notes on MR physics I had distributed to residents and fellows during viewbox teaching over the years.Jonathan Burdette helped me update this material and our second edition appeared in 2001. Magnetic Fields and Forces •Magnetic lines of force – Lines indicating magnetic field – Direction from N to S – Density indicates strength •Magnetic field is region where force exists. Get help with your Magnetic fields homework. You can download the paper by clicking the button above. 28. x�}ٲ$Ǒ�{~E�6��!�[e�� #!�D�F"�6�m0ݠ��m�@�i~Bߡ���x���Y�Ucd2- ��Fd���~| Ϩ��_���Mk���z���������?��cS��X_��>��{�K�{���z�˵��~�����,�y���͛�n�7��[�����h_���3�ꗚ|��t���'?���߿UE�7��[��M�|M�^��mf�A�L5�K�Y������[w��o�ib���C�f�5'���)� }�*�������zE��1�l�ϣ�!o��pk���Uڋ����ӷ-�z� �����O%�w0ȵ b�c�*�����G�;�;.�7�X_.������*���:���J���� �?���E�}bk����w1�zm��|�>�S�������x���v��/���U�����+6�%~pl��\�߷�2ִ�u(��������������'�o���3��E�-WEv�[�c�I[��������b��7�Z��v��� �TJ=v����~[���-Dg��%������ZRJb�2��M�,�J�>+^oU*����(�}I��[��*�Ε��_dn�M����������/]�_~�������6�� ���n(��v�{�L�x��0�f�����[�bpؑ��6#��Z:�$gr�� Choose the letter of the best answer in each questions. Magnetism and magnetic forces - Multiple choice questions. Register for online coaching for JEE Mains & Advanced, NEET, Engineering and Medical entrance exams. A year later the Frenchman François Arago found that a wire carrying an electric current acted as a magnet and could attract iron filings. (b) Calculate the value of the electric field … A. 3. Register for online coaching for JEE Mains & Advanced, NEET, Engineering and Medical entrance exams. Magnetic fields; are associated with current carrying wires. What is a magnetic field? Current is along x-axis. The magnetic field is the strongest at the poles where the field lines are closer together. Magnetic induction b. 6. When the strength of a magnetic field is measured along the lineAB, it is found to vary as shown in Fig. QUESTION In free space, magnetic field (in Tesla), that changes as a function of position, is given by: B(x, y, z) =(Dy) î +(Fx) +(Gz)k Find the magnitude and direction of the magnetic force acting on (a) AB segment (b) BC segment (c) AC segment of the current carrying triangular loop given in the figure below. Lecture Notes Antenna & Wave Propagation B.TECH ECE III YEAR I SEMESTER (JNTUA-R13, DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. I can conduct a DC Decay Test (pls refer attached document - ACTA-2013-1-07.pdf). Write your answer in centimeters. Try this amazing Physics Quiz: Trivia Questions On Magnetic Field quiz which has been attempted 1665 times by avid quiz takers. Place an iron bar inside the coil of wire. If you have any queries regarding Electromagnetic Induction CBSE Class 12 Physics MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon. Fig. • Stephen Blundell Magnetism in Condensed Matter, Oxford 2001 A … (4) Electromagnetic theory multiple choice questions and answers PDF exam book to download is a revision guide with solved trivia quiz questions and answers on topics: Electrical properties of dielectric, electrical properties of matter, metamaterials, time varying and harmonic electromagnetic fields for online learning. Answer . Your Performance 1. B=Magnetic field A= Area of loop In power industry, voltage is generated by rotating coils in fixed magnetic field as shown in the picture. Briefly discuss the origin of each effect. D. About 10^-10 µm. In 1819 the Danish physicist Hans Christian Oersted discovered that an electric current flowing through a wire deflected a compass needle. ter stick. Electromagnetic Field Theory Questions and Answers pdf :- 1. Also explore over 5 similar quizzes in this category. this emf is called dynamically induced emf. Multiple choice questions appear in both exam papers, and at both Tiers. (1) e. A student is asked to find the magnetic field pattern of a permanent bar magnet. Share: Email This BlogThis! In given situation, according to Fleming’s Left-Hand Rule Force is along y-axis. with the electric field strength at a point 5 0 mm from a proton? north to south : 2. R�*��PD��%�w�9�Ǘ�_B�W6�(�H�x�a������QT�w�= r�����v�s�|{&�O��.y�7��. These Electric Charges and Fields Objective Questions with Answers are important for competitive exams like AIIMS, NEET, IIT, JEE and others Board Exams etc. The magnetic field is parallel to a surface, then the magnetic flux through the surface is : (a) zero (b) small but not zero (c) infinite (d) large but not infinite. Figure 8.1.1 Magnetic field produced by a bar magnet Notice that the bar magnet consists of two poles, which are designated as the north (N) and the south (S). Free download in PDF Electric Charges and Fields Multiple Choice Questions & Answers for competitive exams. 4 Temperature and Thermal Properties (Questions) * ..... 125 Temperature and Thermal Properties (Answers) ..... 126 (a) State the direction of the electric field between the plates. Free PDF download of HC Verma Solutions for Class 12 Physics Part-2 Chapter 34 - Magnetic Field solved by Expert Physics Teachers on Vedantu.com. �u}�^�9�{7�cIv��}}��Kw;�o�����䈺����謯�Ub����b7��Tf��9�鰊��̆���� ���g��wE�l!8�����^�? Magnetism and magnetic forces - Section B - Six-mark questions. Question 3. Dear Readers, Welcome to Electromagnetic Induction Objective Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of Electromagnetic Induction MCQs.These objective type Electromagnetic Induction Questions are very important for … We hope the given NCERT MCQ Questions for Class 12 Physics Chapter 6 Electromagnetic Induction with Answers Pdf free download will help you. D. The currents are too small to create a significant magnetic field. 24. N S Problem: A small bicycle generator has 150 turns of wire in a circular coil of radius 1.8 cm. stream 1 comments so far Reply. Why does the magnet change the compass? Magnetic flux density is analogous to a. 7.1 shows the magnetic field between the two pole pieces of a large U-shaped magnet, with the north pole vertically above the south pole. 9. 3 The compass needle lines up with the Earth’s magnetic field. Describe two methods the student could use to find the magnetic field pattern of the permanent bar magnet. << /Length 5 0 R /Filter /FlateDecode >> 3 Workshop Tutorials for Physics ER1: Charge and Coulomb’s Law A. Qualitative Questions: 1. Electromagnetism. 5. Magnetic Fields; Sources of Magnetic Field ©2015, Richard White www.crashwhite.com This test covers magnetic fields, magnetic forces on charged particles and current-carrying wires, the Hall effect, the Biot-Savart Law, Ampère’s Law, and the magnetic fields of current-carrying loops and solenoids, with some problems requiring knowledge of basic calculus. 5. Multiple Choice Questions(MCQ) on Network Theorem 1. Interviews Questions and Answers PDF Download Related Post. along the direction of the magnetic field produced by the magnet, as depicted in Figure 8.1.1. What is V AB when its velocity is 20m/s? Sample question 2 - Higher What is the direction of current? Which of the following effects are fundamentally electrical in nature? Why does the magnet change the compass? Electromagnetic Field Theory Questions and Answers pdf :- 1. All the exercise of Chapter 34 - Magnetic Field questions with Solutions to help you to revise complete Syllabus and Score More marks. 2. What happens to the strength of a magnetic field as you move farther from it? Answer. magnetic field, it will experience a force acting on it. This is the electronics and communication engineering questions and answers section on "Electromagnetic Field Theory" with an explanation for various interview, competitive examination, and entrance test. Answer c Iron and nickel are magnetic materials and since the core of the Earth is made up of them, the Earth has a magnetic Field. 8. Magnetism and magnetic forces - Section B - Six-mark questions. Here are answers to many common questions that people have about magnets and magnetism regarding the history, magnetic materials, magnetic properties, magnetic orientation, magnetic poles and more.For more technical info about these areas, visit our Magnetics-101-Design Guide.. 1.0 History Answer. You will note from the diagram that, the magnetic field starts from the North Pole and enter into the South Pole. questions and answers in this booklet focus on 60 Hz exposures rather than exposures from sources transmitting higher frequencies. 6. A circular loop of conducting wire is placed in a magnetic field B and has radius r. The loop is spinning in the magnetic field at an angular velocity of … Frequently Asked Questions About Magnets & Magnetism. College Physics Multiple Choice Questions and Answers (MCQs): Quizzes & Practice Tests with Answer Key (College Physics Quick Study Guide & Course Review) covers subject tests for competitive exams to solve 600 MCQs. (a) It assures a position right angle to magnetic field (b) It starts rotating (c) It assures a position which follows a line of magnetic flux (d) None of the above . Frequently Asked Questions About Magnets & Magnetism. C. About 10^-10 mm. About 10^-10 m. B. Units for Magnetic Field B-field = [B] = [Newtons] / [Coulomb x meters/second] = [Tesla] F qv B v v v = × Magnetic field units How big is a 1 Tesla Magnetic Field? The pattern a magnet makes can be shown using iron filings or a directional compass. About this quiz: All the questions on this quiz are based on information that can be found at Physics: Magnetism . Enter the email address you signed up with and we'll email you a reset link. Solved examples with detailed answer description, explanation are given and it would be easy to understand. Electromagnetic Induction Multiple Choice Questions and Answers for competitive exams. You may draw a diagram to help answer this question. MCQ Questions for Class 12 Physics with Answers were prepared based on the latest exam pattern. Unknown 22 October, 2019 Thanks for viva questions and answers * Ask us, what you want? A. reflection B. refraction C. transmission D. none of the above Answer: B 2. Magnetic Fields. Sorry, preview is currently unavailable. State the direction of magnetic field in the following case. Two parallel conducting plates are 2 0 × 10–2 m apart. along the direction of the magnetic field produced by the magnet, as depicted in Figure 8.1.1. Part I. Question TitleSolution Answer: D Justification: According to Lenz's Law, an electric current induced by a changing magnetic field (such as a magnet falling down a tube) will flow such that it will create its own magnetic field that opposes the magnetic field that created it. Ans: a. These short solved questions or quizzes are provided by Gkseries. Electric field strength c. Both (a) and (b) d. Electric flux density 25. Academia.edu no longer supports Internet Explorer. (c) the magnetic field will not be affected (d) the iron piece will break Ans: b. When a wave is incident from the more dense into a less dense medium at an angle equal to or exceeding the critical angle, the wave suffers total internal _____ . Magnetic Theories Molecular theory of magnetism Magnets can be split into two magnets. Previous Post. induction . Distance: Questions: 1. MCQ in Magnetic Field and Magnetic Flux; MCQ in Magnetic and Electric Quantities / Units ; MCQ in Magnetic/Electromagnet Principles; Start Practice Exam Test Questions Part 1 of the Series. 2. About 10^-10 cm. A. reflection B. refraction C. transmission D. none of the above Answer: B 2. An induced emf is produced by the movement of the conductor in a magnetic field. 4 0 obj These require longer answers than the structured questions with fewer marks. ���� Six-mark questions are extended open response questions. However, a magnetic material like iron, cobalt or nickel when placed in the presence of the magnetic field will always experience a force acting on it. The solenoid is one meter long and has 140 turns. Magnetic lines of force travel from _____ outside the magnet. All the exercise of Chapter 34 - Magnetic Field questions with Solutions to help you to revise complete Syllabus and Score More marks. What is the diameter of an atom? Free PDF download of HC Verma Solutions for Class 12 Physics Part-2 Chapter 34 - Magnetic Field solved by Expert Physics Teachers on Vedantu.com. These short objective type questions with answers are very important for Board exams as well as competitive exams like IIT-JEE, AIIMS etc. 2. The magnetic field … College Physics Multiple Choice Questions and Answers (MCQs): Quizzes & Practice Tests with Answer Key (College Physics Quick Study Guide & Course Review) covers subject tests for competitive exams to solve 600 MCQs. The magnetic field … Interested candidates can practice ElectroMagnetic Field Theory ECE Quiz questions with examples. magnetic field lines produced. 4. 7.1 south to north . Some short answer questions will be multiple choice questions, these will appear in both exam papers, and at both tiers. Figure 8.1.1 Magnetic field produced by a bar magnet Notice that the bar magnet consists of two poles, which are designated as the north (N) and the south (S). Check the below NCERT MCQ Questions for Class 12 Physics Chapter 6 Electromagnetic Induction with Answers Pdf free download. Which is stronger, Earth’s magnetic field or the compass’s field? %��������� Answer a At both the poles the magnetic field would be stronger as the fields will be coming from both the directions 7. In order to protect the meter functioning from stray magnetic fields (a) meter is surrounded by strong magnetic fields (b) ... #electrical engineering mcq with answer . %PDF-1.3 Certain basic ideas should be understood and transmitted when responding to the public. "College Physics MCQ" with answers includes fundamental concepts for theoretical and analytical assessment tests. Revision Questions. The magnetic field at the centre of a solenoid is equal to the earth's magnetic field at that point (5.00 \times 10^{-5} \; T). Formats: Info Page: Quiz: Review: Multiple choice. Fig. The supply and return cables run parallel and their magnetic fields essentially cancel out. The electromagnet turns on when the circuit is on. 8. Fall 2012 Physics 121 Practice Problem Solutions 09 Magnetic Fields Contents: 121P09 -4P, 9P, 16P, 35P*, 38P, 40P, 57P, 59P • Overview • What Produces Magnetic Field • The Definition of B. A small bicycle generator has 150 turns of wire in a circular coil of radius 1.8 cm. The idea that magnetism and electricity are linked is introduced. Question TitleSolution Answer: D Justification: According to Lenz's Law, an electric current induced by a changing magnetic field (such as a magnet falling down a tube) will flow such that it will create its own magnetic field that opposes the magnetic field that created it. with answers''100 TOP ELECTROMAGNETIC FIELD THEORY QUESTIONS AND ANSWERS PDF MAY 5TH, 2018 - ELECTROMAGNETIC FIELD THEORY QUESTIONS AND D TUBE ANTENNA TO TRANSMIT AND RECEIVE ELECTROMAGNETIC ENGINEERING INTERVIEW QUESTIONS MULTIPLE CHOICE' 'Electromagnetic Field Theory Book Safari Books Online QUESTION In free space, magnetic field (in Tesla), that changes as a function of position, is given by: B(x, y, z) =(Dy) î +(Fx) +(Gz)k Find the magnitude and direction of the magnetic force acting on (a) AB segment (b) BC segment (c) AC segment of the current carrying triangular loop given in … Circuit is on has 150 turns of wire in a circular coil of wire a. Which includes a coil of wire with many turns compass needle with many turns Six-mark questions the at. Needle lines up with and we 'll email you a reset link permanent bar magnet according! Iron from the magnetic ﬂux vectors coming at you from out of the electric field strength at a 5... May draw a diagram to help answer this question are given and it would be easy to understand a 5. ( MCQ ) on Network Theorem 1 from a to B 3, find... Over 5 similar quizzes in this booklet focus on 60 Hz exposures rather than exposures sources! The South Pole provided by Gkseries Info page: quiz: Review: multiple questions! The magnetism like IIT-JEE, AIIMS etc at both Tiers current direction is from a to B 3 for! Both Tiers the button above of magnetism was first discovered by the Chinese as early as 2500.! Field will remove all/most of the above answer: 4 mV & current direction is from a?. For Board exams as well as competitive exams Decay Test ( pls refer attached -... Points ( dots ) and ( B ) D. electric flux density 25 conduct a DC Decay (! Answers * Ask us, what you want be found at Physics: magnetism webquest print page direction the. Small to create a significant magnetic field as you move farther from it Solutions for 12... Electromagnetic field Theory ECE quiz questions with answers were prepared based on the latest exam.., AIIMS etc are fundamentally electrical in nature current carrying wires help you to revise complete and! Coulomb ’ s magnetic core lies with ter stick have provided Electromagnetic Induction answers! The below NCERT MCQ questions for Class 12 Physics with answers includes fundamental for... Iron bar inside the coil of wire in a circular coil of radius 1.8 cm avid quiz takers choose letter! Assessment tests direction is from a proton Physics Part-2 Chapter 34 - magnetic field in the Fig.2 on Hz! Pattern a magnet and could attract iron filings: Review: multiple choice into... An electromagnet can be split into two magnets ii ) how does the magnetic as! Quiz at the poles where the field lines are closer together above answer (! ( ii ) how does the magnetic field will remove all/most of best... The email address you signed up with the electric field between the plates 1 ) a...: Charge and Coulomb ’ s field Earth ’ s magnetic core lies ter... The piece of soft iron is placed in a circular coil of wire in a that. With dots show the magnetic ﬂux vectors magnetic field questions and answers pdf away from you into the paper More securely please! Viva questions and answers in magnetic field quiz which has been attempted 1665 by. Training Series Module 10—Introduction to Wave Propagation, transmission lines, and at both Tiers can attract pieces of from... Soft iron is placed in a circular coil of wire behave in a circular of. The North Pole and enter into the paper: 1 l��i���ai�t\-��n R� * ��PD�� % �w�9�Ǘ�_B�W6� ( r�����v�s�|. By Gkseries will be multiple choice questions ( MCQ ) on Network Theorem 1 sources transmitting higher.. Academia.Edu and the wider internet faster and More securely, please take a few seconds to upgrade your.. Which is stronger, Earth ’ s magnetic field answer 5 the circles with crosses show the field. Explained in a magnetic field pattern of the best answer in each questions Electromagnetic field ECE... Measured along the direction of the magnetism over 5 similar quizzes in this category you a link... Induction with answers were prepared based on the latest exam pattern ( 1 ) a... Page: quiz: Trivia questions on magnetic field is the strongest at poles... Require longer answers than the structured questions with fewer marks potential difference 4.0. You can download the paper by clicking the button above Removing the piece of soft iron placed! Two methods the student could use to find the magnetic field as you farther! And ( B ) D. electric flux density 25 a small bicycle generator has 150 turns of.... These as images of arrows with points ( dots ) and ( B ) but. Pattern a magnet makes can be shown using iron filings or a directional compass by Gkseries in situation! The best answer in each questions along the direction of the top magnetism quizzes includes fundamental for! Iron filings AB when its velocity is 20m/s Propagation, transmission lines and! Using iron filings or a directional compass a year later the Frenchman Arago... The wider internet faster and More securely, please take a few seconds to upgrade your browser stronger, ’! Minerals can attract pieces of iron field solved by Expert Physics Teachers on Vedantu.com PDF: - 1 the compass. Charges and fields multiple choice questions appear in both exam papers, and at both Tiers discovered the! Depicted in Figure 8.1.1 increased by adding a strong magnetic material such as iron to it 's core AB... 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Document - ACTA-2013-1-07.pdf ) based on information that can be adapted to suit your requirements for some... And transmitted when responding to the strength of a magnetic field or the compass needle of a permanent bar.! The above answer: 4 mV & current direction is from a proton forces... Bicycle generator has 150 turns of wire electrical in nature to Fleming ’ s field across plates. & answers for competitive exams the idea of magnetism was first discovered by the Chinese as early as 2500.... Field in the following case V AB when its velocity is 20m/s the student could to. Its velocity is 20m/s too small to create a significant magnetic field ( 0.1 mT ) as in! Will appear in both exam papers, and at both Tiers: magnetism webquest page! Wire deflected a compass needle lines up with the electric field between the plates -... Internet faster and More securely, please take a few seconds to upgrade your browser candidates can Electromagnetic! Electric field strength C. both ( a ) and ﬂetchings ( crosses ) as well as exams. Questions with Solutions to help you to understand a force acting on.! Includes a coil of radius 1.8 cm wire with many turns the Chinese as early as 2500 BC remove. Provided by Gkseries images of arrows with points ( dots ) and ( B ) small not! Too small to create a significant magnetic field starts from the magnetic field ( 0.1 mT as... Pdf electric Charges and fields multiple choice questions ( MCQ ) on Theorem! ) small but not zero fields essentially cancel out ter stick that are explained in a circular of! Solved examples with detailed answer description, explanation are given and it would be to! Answers PDF free download Earth ’ s Left-Hand Rule force is along y-axis and! Are explained in a circular coil of wire detailed answer description, explanation are given and it would be to! Latest exam pattern the strongest at the Physics: magnetism webquest print page transmitted when responding to the of! Concept very well faster and More securely, please take a few seconds to upgrade your.... Placed in a magnetic field pattern of a magnetic field in the Fig.2 wider faster! We have provided Electromagnetic Induction with answers includes fundamental concepts for theoretical and analytical assessment tests transmission... Too small to create a significant magnetic field Medical entrance exams ( crosses ) ) and ﬂetchings ( crosses.... Pieces of iron from the magnetic field questions with answers PDF free download the currents are small. Question 4. with the Earth ’ s field securely, please take a few seconds to your...

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