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

The induced emf in a coil is proportional to:

Question # 2

Self inducede e.m.f. is also called

Question # 3

An induced current can be produced by

Question # 4

The motional e.m.f depends upon the

Question # 5

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

Question # 6

The practical application of the phenomenon of Mutual induction is

Question # 7

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

Question # 8

The change of magnetic flux through a circuit will produce

Question # 9

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

Question # 10

A square loop of wire is moving through a uniform magnetic field. The normal to the loop is oriented parallel to the magnetic field. The emf induced in the loop is:

Question # 11

An induced current can be produced by:

Question # 12

Micheal Faraday and joseph Henry belong respectively to:

Question # 13

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

Question # 14

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

Question # 15

Back emf is produced due to

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 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
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 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
4 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
5 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
6 Transformer is used to
A. Increase alternating current
B. Increase d.c voltage
C. Increase & Decrease emf
D. All answers are right
7 The law of electromagnetic induction is related to:
A. Coulomb
B. Ampere
C. Faraday
D. Lenz
8 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 an induced current is coil S
D. All of these
9 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
10 Split rings act as
A. Vibrator
B. Resistor
C. Motor
D. Commulator

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