ECAT Pre Engineering Physics Chapter 15 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction

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Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction

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Question # 1

Split rings act as

Question # 2

An induced current can be produced by:

Question # 3

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

Question # 4

An induced current can be produced by

Question # 5

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

Question # 6

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

Question # 7

The induced current in the loop can be Increased by

Question # 8

Faraday's law of electromagnetic induction has been used in the construction of:

Question # 9

When the conductor moved across a magnetic field:

Question # 10

The rate change of area expressed is expressed in:

Question # 11

Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current:

Question # 12

An induced current can be produced by:

Question # 13

The Phenomenon of generation of induced emf is called

Question # 14

The work is stored in the inductor as

Question # 15

Lenz's law is the consequence of

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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 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
2 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
3 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
4 The induced current is a conductor depends upon:
A. Resistance of the loop
B. Speed with which the conductor moves
C. Any of these
D. Both (A) and (B)
5 The ratio of average e.m.f in the coil tot he time rate of change of current in the same coil is called
A. Mutual induction
B. Mutual inductance
C. Capacitance
D. Self inductance
6 The induced current in a conductor depends upon:
A. Resistance of the loop
B. Speed with which the conductor moves
C. Any of these
D. Both A and B
7 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
8 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
C. Relative motion of the loop and magnet
D. Any one of above
9 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
10 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

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