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

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

Question # 2

Referring to above figure, a changing current in coil P can be produced:

Question # 3

Which of the following is most suitable as the core of transformer

Question # 4

The motional e.m.f depends upon the

Question # 5

The phenomenon of generation of induced emf is called

Question # 6

Referring to above figure, current in coil P falls from its maximum value to zero:

Question # 7

Michael Faraday and Joseph Henry belong respectively to

Question # 8

In magnet-coil experiment, emf can be produced by

Question # 9

The change of magnetic flux through a circuit will produce

Question # 10

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

Question # 11

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

Question # 12

The induced current is a conductor depends upon:

Question # 13

When a conductoris moved across a magnetic field:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 Micheal Faraday and joseph Henry belong respectively to:
A. USA and England
B. England and France
C. England and USA
D. USA and France
2 The current produced by moving a loop of a wire across a magnetic field is called:
A. Direct current
B. Magnetic current
C. Alternating current
D. Induced current
3 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
4 Referring to above figure, current in coil P falls from its maximum value to zero:
A. At the instant the switch is closed
B. At the instant the switch is opened
C. When switch is kept open
D. When switch is kept closed
5 The change of magnetic flux through a circuit will produce
A. Magnetic Field
B. Electric Field
C. emf
D. a.c
6 A device which converts Electrical energy into mechanical energy is called as
A. Transformer
B. Generator
C. Motor
D. All of these
7 Lens's law deals with the
A. Magnitude of induced current
B. Magnitude of induced e.m.f
C. Direction of induced e.m.f
D. Direction of induced current
8 Motional emf is called motional:
A. Electromagnetic force and is measured in newtons
B. Electromotive force and is measured in volt
C. Electromotive force and is measured in newtons
D. Electromagnetic force and is measured in volts
9 A coil of constant area is placed in a constant magnetic field. An induced current is produced in the coil when
A. The coil is distorted
B. The coil is rotated
C. The coil is neither distorted nor rotated
D. Both A and B
10 Referring to above figure, current in coil P falls from its maximum value to zero
A. At the instant the switch is closed
B. At the instant the switch is opened
C. When switch is kept open
D. When switch is kept closed

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