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

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

Question # 2

Transformer is used to

Question # 3

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

Question # 4

The induced current in a conductor depends upon

Question # 5

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

Question # 6

Lens's law deals with the

Question # 7

Eddy current is produced when:

Question # 8

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

Question # 9

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

Question # 10

An induced current can be produced by

Question # 11

An emf is set up in a conductor when it:

Question # 12

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

Question # 13

Micheal Faraday and joseph Henry belong respectively to:

Question # 14

When a conductor is moved across a magnetic field, the redistribution of charge sets up:

Question # 15

The practical application of the phenomenon of Mutual induction is

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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 A.C. can be measure with the help of
A. Nuclear effect
B. Magnetic effect
C. Chemical effect
D. Heating effect
3 When there is no relative motion between the magnet and coil, the galvanometer indicates:
A. No current in circuit
B. An increasing current
C. A decreasing current
D. Either B or C
4 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
5 The magnitude of induced emf depends upon the
A. Rate of decrease of magnetic field
B. Rate of change of magnetic field
C. Rate of increase of magnetic flux
D. Constancy of magnetic field
6 The practical application of the phenomenon of Mutual induction is
A. Transformers
B. Generator
C. Motor
D. All of these
7 Lenz's law is the consequence of
A. Mass
B. Energy conservation
C. Momentum conservation
D. Charge
8
The magnitude of induced emf depends upon the:
A. Rate of decrease of magnetic field
B. Rate of change of magnetic field
C. Rate of increase of magnetic flux
D. Constancy of magnetic field
9 Split rings act as
A. Vibrator
B. Resistor
C. Motor
D. Commulator
10 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

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