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

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

Question # 2

The work is stored in the inductor as

Question # 3

The induced current in a conductor depends upon:

Question # 4

The product of induced current and the resistance of the wire through which the current is passing is called:

Question # 5

The SI unit of magnetic induction is

Question # 6

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

Question # 7

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

Question # 8

The magnitude of induced emf depends upon the

Question # 9

The phenomenon of generation of induced emf is called:

Question # 10

The motional e.m.f depends upon the

Question # 11

A coil of constant area is placed in a constant magnetic field. An induced current is produced in the coil when

Question # 12

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

Question # 13

Michael Faraday and Joseph Henry belong respectively to

Question # 14

The law of electromagnetic induction is related to:

Question # 15

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

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic feild
D. Constant electric field
2 Lenz's law is the consequence of
A. Mass
B. Energy conservation
C. Momentum conservation
D. Charge
3 A.C. can be measure with the help of
A. Nuclear effect
B. Magnetic effect
C. Chemical effect
D. Heating effect
4 A square loop of wire is moving through a uniform magnetic field. The normal to the loop is oriented parallel to the magnetic field. The emf induced in the loop is:
A. Zero
B. Of smaller magnitude
C. Of larger magnitude
D. Sometimes B, sometimes C
5 Eddy current is produced when:
A. A metal is kept in varying magnetic field
B. A metal is kept in steady magnetic field
C. A circular coil is placed in a steady magnetic field
D. A current is passed through a circular coil
6 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
7 The product of induced current and the resistance of the wire through which the current is passing is called:
A. Electromagnetic induction
B. induced emf
C. Induced current
D. Self induced
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 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 Micheal Faraday and joseph Henry belong respectively to:
A. USA and England
B. England and France
C. England and USA
D. USA and France

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