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 induced current in a conductor depends upon:

Question # 2

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

Question # 3

An emf is set up in a conductor when it:

Question # 4

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

Question # 5

The induced current in the loop can be Increased by

Question # 6

The induced current in the loop can be increased by:

Question # 7

When the conductor moved across a magnetic field:

Question # 8

Back emf is produced due to

Question # 9


The magnitude of induced emf depends upon the:

Question # 10

The motional e.m.f depends upon the

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

The induced emf in a coil is proportional to:

Question # 15

A.C. can be measure with the help of

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 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
2 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
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 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 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
6 A.C. can be measure with the help of
A. Nuclear effect
B. Magnetic effect
C. Chemical effect
D. Heating effect
7 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
8 The device in which induced emf is statically induced emf is:
A. Transformer
B. AC generator
C. Alternator
D. Dynamo
9 In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:
A. Motion emf
B. Electrostatic emf
C. Induced emf
D. Both A and B
10 Faraday's law of electromagnetic induction has been used in the construction of:
A. Galvanometer
B. Voltmeter
C. Electric motor
D. Electric genrator

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