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

Michael Faraday and Joseph Henry belong respectively to

Question # 2

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 # 3

The induced current is a conductor depends upon:

Question # 4

An emf is set up in a conductor when it:

Question # 5

The induced current in the loop can be Increased by

Question # 6

The work is stored in the inductor as

Question # 7

The phenomenon of generation of induced emf is called

Question # 8

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

Question # 9

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

Question # 10

The rate change of area expressed is expressed in:

Question # 11

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

Question # 12

An emf is set up in a conductor when it:

Question # 13


The magnitude of induced emf depends upon the:

Question # 14

The practical application of the phenomenon of Mutual induction is

Question # 15

Lens's law deals with the

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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 Transformer is used to
A. Increase alternating current
B. Increase d.c voltage
C. Increase & Decrease emf
D. All answers are right
3 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
4 Back emf is produced due to
A. Self induction
B. Mutual induction
C. A.C
D. Lenz's law
5 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
6 In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:
A. Motion emf
B. Electrostatic emf
C. Induced emf
D. Both A and B
7 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
8 The work is stored in the inductor as
A. Electric potential energy
B. Elastic potential energy
C. Magnetic energy
D. Absolute potential energy
9 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
10 Which of the following quantities remain constant in step up transformer?
A. Current
B. Voltage
C. Power
D. Heat

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