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

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

Question # 2

A.C. can be measure with the help of

Question # 3

The rate change of area expressed is expressed in:

Question # 4

Eddy current is produced when:

Question # 5

Back emf is produced due to

Question # 6

When the conductor moved across a magnetic field:

Question # 7

An emf is set up in a conductor when it:

Question # 8

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

Question # 9

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

Question # 10

Michael Faraday and Joseph Henry belong respectively to

Question # 11

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

Question # 12

The ratio of average e.m.f in the coil tot he time rate of change of current in the same coil is called

Question # 13

The induced current in a conductor depends upon:

Question # 14

Self inducede e.m.f. is also called

Question # 15

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

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 The Phenomenon of generation of induced emf is called
A. Electrostatic induction
B. Magnetic induction
C. Electromagnetic induction
D. Electric induction
2 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
3 Referring to above figure, current in the coil P grows from zero to its maximum value:
A. At the instant the switch is closed
B. At the instant the switch is opened
C. When switch is kept open
D. All of above
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 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
6 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
7 Lens's law deals with the
A. Magnitude of induced current
B. Magnitude of induced e.m.f
C. Direction of induced e.m.f
D. Direction of induced current
8 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
9 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
10 The current produced by moving a loop of wire across a magnetic field is called
A. Direct current
B. Magnetic current
C. Alternating current
D. Induced current

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