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

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

Question # 2

Back emf is produced due to

Question # 3

Split rings act as

Question # 4

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

Question # 5

What is the coefficient of mutual inductance, when the magnetic flux changes by 2 X 10-2Wb, and change in current is 0.01 A?

Question # 6

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

Question # 7

Transformer is used to

Question # 8

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 # 9

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

Question # 10

The unit of induced emf is:

Question # 11

The induced current in the loop can be Increased by

Question # 12

The direction of induced current is always so as to oppose the cause which produces it. This is

Question # 13

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

Question # 14

The work is stored in the inductor as

Question # 15

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

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 Split rings act as
A. Vibrator
B. Resistor
C. Motor
D. Commulator
2 An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic field
D. Constant electric field
3 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
4 Lenz's law is the consequence of
A. Mass
B. Energy conservation
C. Momentum conservation
D. Charge
5 Michael Faraday and Joseph Henry belong respectively to
A. USA and England
B. England and France
C. England and USA
D. USA and France
6 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
7 For inducting emf in a coil the basic requirement is that:
A. Flux should link the coil
B. Change in flux should link the coil
C. Coil should form a closed loop
D. Both B and C are true
8 The phenomenon of generation of induced emf is called
A. Electrostatic induction
B. Magnetic induction
C. Electromagnetic induction
D. Electric induction
9 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)
10 A device which converts Electrical energy into mechanical energy is called as
A. Transformer
B. Generator
C. Motor
D. All of these

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