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

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

Question # 2

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

Question # 3

Eddy current is produced when:

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7


The magnitude of induced emf depends upon the:

Question # 8

The unit of induced emf is:

Question # 9

The phenomenon of generation of induced emf is called

Question # 10

The induced current in the loop can be Increased by

Question # 11

The motional e.m.f depends upon the

Question # 12

Self inducede e.m.f. is also called

Question # 13

Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current

Question # 14

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

Question # 15

The law of electromagnetic induction is related to:

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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 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
3 The product of induced current and the resistance of the wire through which the current is passing is called:
A. Electromagnetic induction
B. induced emf
C. Induced current
D. Self induced
4 An emf is set up in a conductor when it:
A. is kept in a magnetic field
B. is kept in a electric field
C. Move across a magnetic field
D. Both (A) and (B)
5 In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:
A. Both A and C
B. Induced emf
C. Both A and B
D. Motion emf
6 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:
A. 0.2 henry
B. 0.1 henry
C. 0.8 henry
D. 0.04 henry
7 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:
A. 0.25 N
B. 0.25 V
C. 2.5 V
D. 2.5 N
8 The rate change of area expressed is expressed in:
A. None of these
B. ms-1
C. m2s-2
D. ms-2
9 An emf is set up in a conductor when it:
A. Is kept in a magnetic field
B. Is kept in an electric field
C. Moves across a magnetic field
D. Both A and B
10
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

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