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

An induced current can be produced by:

Question # 2

Lenz's law is the consequence of

Question # 3

An emf is set up in a conductor when it:

Question # 4

The unit of induced emf is:

Question # 5

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

Question # 6

The ratio of average e.m.f in the coil tot he time rate of change of current in the same coil is called

Question # 7

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

Question # 8

Plan of a coil makes an angle of 20º with the lines of magnetic field. The angle between B and vector area of plane of coil is:

Question # 9

The induced current in a conductor depends upon

Question # 10

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

Question # 11

The change of magnetic flux through a circuit will produce

Question # 12

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

Question # 13

When a conductoris moved across a magnetic field:

Question # 14

A.C. can be measure with the help of

Question # 15

In magnet-coil experiment, emf can be produced by

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 The induced current in the loop can be Increased by
A. Using a stronger magnetic field
B. Moving the loop faster
C. Replacing the loop by a coil of many turns
D. All above
2 An induced current can be produced by
A. Constant magnetic field
B. Changing magnetic field
C. Varying electric field
D. Constant electric field
3 The induced current is 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)
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 Referring to above figure, due to change in current in the coil P, the change in magnetic flux
A. Is associated with coil P
B. Is associated with coil S
C. Causes and induced current in coil S
D. All of these
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 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 The phenomenon of generation of induced emf is called:
A. Electrostatic induced
B. Magnetic induced
C. Electromagnetic induced
D. Electric induced
9 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)
10 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

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