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2. Which of the following is NOT true about induced emf? A. It is caused by a constant magnetic field. B. It is directly proportional to induced current. C. It is always opposite to the direction of magnetic flux. D. It is only produced by the motion perpendicular to the field.

2. Which of the following is NOT true about induced emf? A. It is caused by a constant magnetic field. B. It is directly proportional to induced current. C. It is always opposite to the direction of magnetic flux. D. It is only produced by the motion perpendicular to the field.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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2. Which of the following is NOT true about induced emf? A. It is caused by a constant magnetic field. B. It is directly proportional to induced current. C. It is always opposite to the direction of magnetic flux. D. It is only produced by the motion perpendicular to the field. 9. The following are factors involved in the induced emf of a coil of wire EXCEPT A. The induced emf is directly proportional to N, the total number of turns in the coil. B. The induced emf is directly proportional to A, the area of cross-section of the coil. C. The induced emf is directly proportional to instant t, the time of changing magnetic flux. D. The induced emf is directly proportional to B, the strength of the magnetic field in which the coil is rotating. 10. Which of the following is NOT true about induced electric field? A. It is caused by the changing magnetic field. B. Its work or energy difference depends on path. C. Its field & E. dl is not equal to zero, therefore electric potential has no meaning. D. Its force is conservative because it does net work in moving a charge over a closed path. 11. The following are the similarities of electrostatic electric field and induced electric field EXCEPT A. their field lines form closed loops. B. their field lines never cross each other. C. their field exerts a force, F =qE on charged particle. D. their field is strong when the field lines are close together.
Transcribed Image Text:2. Which of the following is NOT true about induced emf? A. It is caused by a constant magnetic field. B. It is directly proportional to induced current. C. It is always opposite to the direction of magnetic flux. D. It is only produced by the motion perpendicular to the field. 9. The following are factors involved in the induced emf of a coil of wire EXCEPT A. The induced emf is directly proportional to N, the total number of turns in the coil. B. The induced emf is directly proportional to A, the area of cross-section of the coil. C. The induced emf is directly proportional to instant t, the time of changing magnetic flux. D. The induced emf is directly proportional to B, the strength of the magnetic field in which the coil is rotating. 10. Which of the following is NOT true about induced electric field? A. It is caused by the changing magnetic field. B. Its work or energy difference depends on path. C. Its field & E. dl is not equal to zero, therefore electric potential has no meaning. D. Its force is conservative because it does net work in moving a charge over a closed path. 11. The following are the similarities of electrostatic electric field and induced electric field EXCEPT A. their field lines form closed loops. B. their field lines never cross each other. C. their field exerts a force, F =qE on charged particle. D. their field is strong when the field lines are close together.
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