ECAT Pre Engineering Physics Chapter 15 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction

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

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Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction

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Question # 1

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

Question # 2

Back emf is produced due to

Question # 3

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

Question # 4

Eddy current is produced when:

Question # 5

The induced current is a conductor depends upon:

Question # 6

Referring to above figure, due to change in current in the coil P, the change in magnetic flux

Question # 7

Lenz's law is the consequence of

Question # 8

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

Question # 9

The induced current in a conductor depends upon:

Question # 10

The induced current in the loop can be Increased by

Question # 11

An emf is set up in a conductor when it:

Question # 12

The induced current in the loop can be increased by:

Question # 13

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

Question # 14

For inducting emf in a coil the basic requirement is that:

Question # 15

An emf is set up in a conductor when it

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 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
2 Which of the following is most suitable as the core of transformer
A. Soft iron
B. Alinco
C. Steel
D. None of these
3 The motional e.m.f depends upon the
A. Length of a conductor
B. Strength of a magnet
C. Speed of the conductor
D. All of the above
4 In magnet-coil experiment, emf can be produced by:
A. Keeping the coil stationary and moving the magnet
B. Keeping the magnet stationary and moving the coil
C. Relative motion of the loop and magnet
D. Any one of above
5 An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic field
D. Constant electric field
6
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
7 Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current:
A. Of same magnitude in the same direction
B. Of different magnitude in the same direction
C. Of same magnitude but in opposite direction
D. Of different magnitude in the opposite direction
8 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
9 When there is no relative motion between the magnet and coil, the galvanometer indicated
A. No current in the circuit
B. An increasing current
C. A decreasing current
D. A constant current
10 The practical application of the phenomenon of Mutual induction is
A. Transformers
B. Generator
C. Motor
D. All of these

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