ECAT Pre Computer Science Chapter 15 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 15 Electromagnetic Induction

Try The MCQ's Test For ECAT Physics Chapter 15 Electromagnetic Induction

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ECAT Physics Chapter 15 Electromagnetic Induction

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Question # 1

In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:

Question # 2

The current produced by moving a loop of wire across a magnetic field is called:

Question # 3

In magnet-coil experiment, emf can be produced by:

Question # 4

The change of magnetic flux through a circuit will produce

Question # 5

Micheal Faraday and joseph Henry belong respectively to:

Question # 6

When a conductor moved with its length parallel to the lines of magnetic fled:

Question # 7

Which of the following quantities remain constant in step up transformer?

Question # 8

Split rings act as

Question # 9

Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current:

Question # 10

The rate change of area expressed is expressed in:

Question # 11

When there is no relative motion between the magnet and coil, the galvanometer indicated

Question # 12

When there is no relative motion between the magnet and coil, the galvanometer indicates:

Question # 13

Lens's law deals with the

Question # 14

An induced current can be produced by:

Question # 15

In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:
A. Motion emf
B. Electrostatic emf
C. Induced emf
D. Both A and B
2 The magnitude of induced emf depends upon the:
A. Rate of decrease of magnetic field
B. Rate of change of magnetic field
C. Rate of increase of magnetic flux
D. Constancy of magnetic field
3 Which of the following is most suitable as the core of transformer
A. Soft iron
B. Alinco
C. Steel
D. None of these
4 A coil of constant area is placed in a constant magnetic field. An include current is produced in the coil when:
A. The coil is destroyed
B. The coil is Rotated
C. The coil is neither destroyed nor rotated
D. Both (A) and (B)
5 The device in which induced emf is statically induced emf is:
A. Transformer
B. AC generator
C. Alternator
D. Dynamo
6 The induced current in a conductor depends upon:
A. Resistance of the loop
B. Speed with which the conductor moves
C. Any of these
D. Both A and B
7 An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic field
D. Constant electric field
8 For inducting emf in a coil the basic requirement is that:
A. Flux should link the coil
B. Change in flux should link the coil
C. Coil should form a closed loop
D. Both B and C are true
9 The direction of induced current is always so as to oppose the cause which produces it. This is
A. Lenz's law
B. Ampere's law
C. Faraday's law
D. Coulomb's law
10
The magnitude of induced emf depends upon the:
A. Rate of decrease of magnetic field
B. Rate of change of magnetic field
C. Rate of increase of magnetic flux
D. Constancy of magnetic field

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