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, a changing current in coil P can be produced:

Question # 2

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

Question # 3

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

Question # 4

Eddy current is produced when:

Question # 5

Faraday's law of electromagnetic induction has been used in the construction of:

Question # 6

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

Question # 7

The work is stored in the inductor as

Question # 8

Motional emf is called motional:

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

When there is no relative motion between the magnet and coil, the galvanometer indicated

Question # 13

The induced emf in a coil is proportional to:

Question # 14

The induced current in the loop can be Increased by

Question # 15

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

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 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 the coil
C. Relative motion of the loop and magnet
D. Any one of above
2 The ratio of average e.m.f in the coil tot he time rate of change of current in the same coil is called
A. Mutual induction
B. Mutual inductance
C. Capacitance
D. Self inductance
3 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
4 A device which converts Electrical energy into mechanical energy is called as
A. Transformer
B. Generator
C. Motor
D. All of these
5 When a conductor moved with its length parallel to the lines of magnetic fled:
A. An emf is induced across its ends
B. Emf induced is similar to that of a battery
C. Emf passes through the conductor
D. Both A and B
6 The Phenomenon of generation of induced emf is called
A. Electrostatic induction
B. Magnetic induction
C. Electromagnetic induction
D. Electric induction
7 An induced current can be produced by
A. Constant magnetic field
B. Changing magnetic field
C. Varying electric field
D. Constant electric field
8 Lenz's law is the consequence of
A. Mass
B. Energy conservation
C. Momentum conservation
D. Charge
9 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
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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