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 there is no relative motion between the magnet and coil, the galvanometer indicates:

Question # 2

An induced current can be produced by:

Question # 3

The magnitude of induced emf depends upon the:

Question # 4

The magnitude of induced emf depends upon the

Question # 5

In magnet-coil experiment, emf can be produced by

Question # 6

The phenomenon of generation of induced emf is called

Question # 7

The motional e.m.f depends upon the

Question # 8

Which of the following quantities remain constant in step up transformer?

Question # 9

The current produced by moving a loop of wire across a magnetic field is called:

Question # 10

The induced current in the loop can be Increased by

Question # 11

An emf is set up in a conductor when it:

Question # 12

The unit of induced emf is:

Question # 13

Split rings act as

Question # 14

An emf is set up in a conductor when it

Question # 15

The rate change of area expressed is expressed in:

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 A coil of constant area is placed in a constant magnetic field. An include current is produced in the coil when:
A. The coil is destroyed
B. The coil is Rotated
C. The coil is neither destroyed nor rotated
D. Both (A) and (B)
2 Referring to above figure, due to change in current in the coil P, the change in magnetic flux
A. Is associated with coil P
B. Is associated with coil S
C. Causes and induced current in coil S
D. All of these
3 The induced emf in a coil is proportional to:
A. Magnetic flux through a coil
B. Rate of change of magnetic flux through the coil
C. Area of the coil
D. Product of magnetic flux and area of the coil
4 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
5 An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic field
D. Constant electric field
6 When the conductor moved across a magnetic field:
A. Emf induced is similar to that of a battery

B. Emf induced gives rise to induced current

C. An emf induced across its ends

D. All are correct
7 The unit of induced emf is:
A. Volt
B. Nm/As
C. Joule coul-1
D. Both A and C
8 A device which converts Electrical energy into mechanical energy is called as
A. Transformer
B. Generator
C. Motor
D. All of these
9 Faraday's law of electromagnetic induction has been used in the construction of:
A. Galvanometer
B. Voltmeter
C. Electric motor
D. Electric genrator
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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