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

The change of magnetic flux through a circuit will produce

Question # 2

When the conductor moved across a magnetic field:

Question # 3

The induced current in the loop can be increased by:

Question # 4

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

Question # 5

An induced current can be produced by:

Question # 6

The motional e.m.f depends upon the

Question # 7

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

Question # 8

The practical application of the phenomenon of Mutual induction is

Question # 9

In a coil current change from 2 to 4 A in .05 s. If the average induced emf is 8V then coefficient of self-inductance is:

Question # 10

In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:

Question # 11

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

Question # 12

A.C. can be measure with the help of

Question # 13

The induced current in a conductor depends upon

Question # 14

Micheal Faraday and joseph Henry belong respectively to:

Question # 15

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

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 Transformer is used to
A. Increase alternating current
B. Increase d.c voltage
C. Increase & Decrease emf
D. All answers are right
2 The practical application of the phenomenon of Mutual induction is
A. Transformers
B. Generator
C. Motor
D. All of these
3 The phenomenon of generation of induced emf is called:
A. Electrostatic induced
B. Magnetic induced
C. Electromagnetic induced
D. Electric induced
4 An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic feild
D. Constant electric field
5 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)
6 Which of the following quantities remain constant in step up transformer?
A. Current
B. Voltage
C. Power
D. Heat
7 The law of electromagnetic induction is related to:
A. Coulomb
B. Ampere
C. Faraday
D. Lenz
8 The motional e.m.f depends upon the
A. Length of a conductor
B. Strength of a magnet
C. Speed of the conductor
D. All of the above
9 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
10 Referring to above figure, a changing current in coil P can be produced:
A. At the instant the switch is closed
B. At the instant the switch is opened
C. With the help of rheostat
D. All of these

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