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

An induced current can be produced by

Question # 2

The ratio of average e.m.f in the coil tot he time rate of change of current in the same coil is called

Question # 3

For inducting emf in a coil the basic requirement is that:

Question # 4

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

Question # 5

Michael Faraday and Joseph Henry belong respectively to

Question # 6

An emf is set up in a conductor when it:

Question # 7

Back emf is produced due to

Question # 8

The phenomenon of generation of induced emf is called:

Question # 9

The magnitude of induced emf depends upon the:

Question # 10

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 # 11

In magnet-coil experiment, emf can be produced by

Question # 12

When a conductor moved with its length parallel to the lines of magnetic fled:

Question # 13

The induced current in the loop can be increased by:

Question # 14


The magnitude of induced emf depends upon the:

Question # 15

The work is stored in the inductor as

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 The ratio of average e.m.f in the coil tot he time rate of change of current in the same coil is called
A. Mutual induction
B. Mutual inductance
C. Capacitance
D. Self inductance
2 Referring to above figure, current in coil P falls from its maximum value to zero
A. At the instant the switch is closed
B. At the instant the switch is opened
C. When switch is kept open
D. When switch is kept closed
3

An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic field
D. Constant electric field
4 Self inducede e.m.f. is also called
A. Motional e.m.f.
B. Thermistor
C. Electrostatic induction
D. Back e.m.f
5 The unit of induced emf is:
A. Volt
B. Nm/As
C. Joule coul-1
D. Both A and C
6 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
7 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)
8 The practical application of the phenomenon of Mutual induction is
A. Transformers
B. Generator
C. Motor
D. All of these
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 Which of the following is most suitable as the core of transformer
A. Soft iron
B. Alinco
C. Steel
D. None of these

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