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

Back emf is produced due to

Question # 2

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

Question # 3

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

Question # 4

Transformer is used to

Question # 5

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

Question # 6

The unit of induced emf is:

Question # 7

The phenomenon of generation of induced emf is called

Question # 8

The magnitude of induced emf depends upon the:

Question # 9

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

Question # 10

An induced current can be produced by:

Question # 11

The induced current in the loop can be Increased by

Question # 12

A metal road of length 1m is moving at a speed of 1 ms-1In a direction making angle of 30º with 0.5 Y magnetic field. The emf produced in the rod is:

Question # 13

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

Question # 14

A device which converts Electrical energy into mechanical energy is called as

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 Faraday's law of electromagnetic induction has been used in the construction of:
A. Galvanometer
B. Voltmeter
C. Electric motor
D. Electric genrator
2 A.C. can be measure with the help of
A. Nuclear effect
B. Magnetic effect
C. Chemical effect
D. Heating effect
3 The current produced by moving a loop of a wire across a magnetic field is called:
A. Direct current
B. Magnetic current
C. Alternating current
D. Induced current
4 Which of the following quantities remain constant in step up transformer?
A. Current
B. Voltage
C. Power
D. Heat
5 The practical application of the phenomenon of Mutual induction is
A. Transformers
B. Generator
C. Motor
D. All of these
6 When a conductor is moved across a magnetic field, the redistribution of charge sets up:
A. Magnetic field
B. Electrostatic field
C. Electromagnetic field
D. All of these
7 A device which converts Electrical energy into mechanical energy is called as
A. Transformer
B. Generator
C. Motor
D. All of these
8 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)
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 A metal road of length 1m is moving at a speed of 1 ms-1In a direction making angle of 30º with 0.5 Y magnetic field. The emf produced in the rod is:
A. 0.25 N
B. 0.25 V
C. 2.5 V
D. 2.5 N

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