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

Self inducede e.m.f. is also called

Question # 2

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

Question # 3

The induced current in a conductor depends upon

Question # 4

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

Question # 5


The magnitude of induced emf depends upon the:

Question # 6

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

Question # 7

Motional emf is called motional:

Question # 8

The SI unit of magnetic induction is

Question # 9

Referring to above figure, current in the coil P grows from zero to its maximum value

Question # 10

An induced current can be produced by:

Question # 11

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

Question # 12

Eddy current is produced when:

Question # 13

The induced current in the loop can be increased by:

Question # 14

The practical application of the phenomenon of Mutual induction is

Question # 15

Split rings act as

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 Michael Faraday and Joseph Henry belong respectively to
A. USA and England
B. England and France
C. England and USA
D. USA and France
2 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
C. Relative motion of the loop and magnet
D. Any one of above
3 Referring to above figure, a changing current in coil P can be produced:
A. At the instant the switch is closed
B. At the instant the switch is opened
C. With the help of rheostat
D. All of these
4 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
5 Which of the following quantities remain constant in step up transformer?
A. Current
B. Voltage
C. Power
D. Heat
6 A device which converts Electrical energy into mechanical energy is called as
A. Transformer
B. Generator
C. Motor
D. All of these
7 Back emf is produced due to
A. Self induction
B. Mutual induction
C. A.C
D. Lenz's law
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 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
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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