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

When a conductoris moved across a magnetic field:

Question # 2

Transformer is used to

Question # 3

The Phenomenon of generation of induced emf is called

Question # 4

The induced current in the loop can be Increased by

Question # 5

The law of electromagnetic induction is related to:

Question # 6

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

Question # 7

The unit of induced emf is:

Question # 8

An emf is set up in a conductor when it

Question # 9

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

Question # 10

The induced emf in a coil is proportional to:

Question # 11


The magnitude of induced emf depends upon the:

Question # 12

The induced current is a conductor depends upon:

Question # 13

The induced current in a conductor depends upon:

Question # 14

Michael Faraday and Joseph Henry belong respectively to

Question # 15

The magnitude of induced emf depends upon the:

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 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
2 The rate change of area expressed is expressed in:
A. None of these
B. ms-1
C. m2s-2
D. ms-2
3 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
4 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
5 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
6 The work is stored in the inductor as
A. Electric potential energy
B. Elastic potential energy
C. Magnetic energy
D. Absolute potential energy
7 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
8 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
9 Michael Faraday and Joseph Henry belong respectively to
A. USA and England
B. England and France
C. England and USA
D. USA and France
10 In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:
A. Both A and C
B. Induced emf
C. Both A and B
D. Motion emf

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