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 induced current is a conductor depends upon:

Question # 2

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

Question # 3

Eddy current is produced when:

Question # 4

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

Question # 5

Motional emf is called motional:

Question # 6

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 # 7

An emf is set up in a conductor when it:

Question # 8

An induced current can be produced by:

Question # 9

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

Question # 10

The induced current in a conductor depends upon:

Question # 11

Back emf is produced due to

Question # 12

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

Question # 13


The magnitude of induced emf depends upon the:

Question # 14

Faraday's law of electromagnetic induction has been used in the construction of:

Question # 15

An induced current can be produced by

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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 phenomenon of generation of induced emf is called:
A. Electrostatic induced
B. Magnetic induced
C. Electromagnetic induced
D. Electric induced
3 The induced current in the loop can be increased by:
A. Using a stronger magnetic field
B. Moving the loop faster
C. Replacing the loop by a coil of many turns
D. All above
4 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
5 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
6 The change of magnetic flux through a circuit will produce
A. Magnetic Field
B. Electric Field
C. emf
D. a.c
7 When a conductor is moved across a magnetic field, the redistribution of charge sets up:
A. Magnetic field
B. Electrostatic field
C. Electromagnetic field
D. All of these
8 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
9 The rate change of area expressed is expressed in:
A. None of these
B. ms-1
C. m2s-2
D. ms-2
10 An induced current can be produced by
A. Constant magnetic field
B. Changing magnetic field
C. Varying electric field
D. Constant electric field

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