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

00:00
Question # 1

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

Question # 2

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

Question # 3

The induced current in a conductor depends upon

Question # 4

Step up transformer has a transformation ratio of 3:2. What is the voltage in secondary, if voltage in primary is 30V:

Question # 5

Eddy current is produced when:

Question # 6

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

Question # 7

An induced current can be produced by:

Question # 8

The induced emf in a coil is proportional to:

Question # 9

In magnet-coil experiment, emf can be produced by

Question # 10


The magnitude of induced emf depends upon the:

Question # 11

An induced current can be produced by

Question # 12

Lenz's law is the consequence of

Question # 13

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

Question # 14

The rate change of area expressed is expressed in:

Question # 15

The phenomenon of generation of induced emf is called

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 The direction of induced current is always so as to oppose the cause which produces it. This is
A. Lenz's law
B. Ampere's law
C. Faraday's law
D. Coulomb's law
2 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
3 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
4 Step up transformer has a transformation ratio of 3:2. What is the voltage in secondary, if voltage in primary is 30V:
A. 45 V
B. 15 V
C. 90 V
D. 300 V
5 Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current
A. Of same magnitude in the same direction
B. Of different magnitude in the same direction
C. Of same magnitude but in opposite direction
D. Of different magnitude in the opposite direction
6 Lenz's law is the consequence of
A. Mass
B. Energy conservation
C. Momentum conservation
D. Charge
7 Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current:
A. Of same magnitude in the same direction
B. Of different magnitude in the same direction
C. Of same magnitude but in opposite direction
D. Of different magnitude in the opposite direction
8 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
9 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
10 Faraday's law of electromagnetic induction has been used in the construction of:
A. Galvanometer
B. Voltmeter
C. Electric motor
D. Electric genrator

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