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

A.C. can be measure with the help of

Question # 2

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

Question # 3

Micheal Faraday and joseph Henry belong respectively to:

Question # 4

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

Question # 5

The magnitude of induced emf depends upon the

Question # 6

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

Question # 7

Self inducede e.m.f. is also called

Question # 8

The practical application of the phenomenon of Mutual induction is

Question # 9

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

Question # 10

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 # 11

The induced current in a conductor depends upon

Question # 12

In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:

Question # 13

A device which converts Electrical energy into mechanical energy is called as

Question # 14

An induced current can be produced by:

Question # 15

The device in which induced emf is statically induced emf is:

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 When a conductoris moved across a magnetic field:
A. Emf induced its similar to that of a battery
B. Emf induced gives rise to induced current
C. An emf is induced across its ends
D. All are correct
2 The induced emf in a coil is proportional to:
A. Magnetic flux through a coil
B. Rate of change of magnetic flux through the coil
C. Area of the coil
D. Product of magnetic flux and area of the coil
3 An emf is set up in a conductor when it
A. Is kept in a magnetic field
B. Is kept in an electric field
C. Moves across a magnetic field
D. Both A and B
4 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
5 The work is stored in the inductor as
A. Electric potential energy
B. Elastic potential energy
C. Magnetic energy
D. Absolute potential energy
6 What is the coefficient of mutual inductance, when the magnetic flux changes by 2 X 10-2Wb, and change in current is 0.01 A?
A. 2 H
B. 3 H
C. 1/2 H
D. Zero
7 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
8 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
9 An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic feild
D. Constant electric field
10 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:
A. Also 20º

B. 70º

C. 90º

D. 180º

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