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 emf in a coil is proportional to:

Question # 2

An induced current can be produced by

Question # 3

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

Question # 4

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

Question # 5

The induced current in the loop can be increased by:

Question # 6

The phenomenon of generation of induced emf is called:

Question # 7

When a conductoris moved across a magnetic field:

Question # 8

Transformer is used to

Question # 9

An emf is set up in a conductor when it

Question # 10

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

Question # 11

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

Question # 12

The magnitude of induced emf depends upon the:

Question # 13

In magnet-coil experiment, emf can be produced by

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 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
2 A.C. can be measure with the help of
A. Nuclear effect
B. Magnetic effect
C. Chemical effect
D. Heating effect
3 The product of induced current and the resistance of the wire through which the current is passing is called:
A. Electromagnetic induction
B. induced emf
C. Induced current
D. Self induced
4 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
5 The change of magnetic flux through a circuit will produce
A. Magnetic Field
B. Electric Field
C. emf
D. a.c
6 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
7 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
8 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
9 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
10 Self inducede e.m.f. is also called
A. Motional e.m.f.
B. Thermistor
C. Electrostatic induction
D. Back e.m.f

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