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

Question # 2

The SI unit of magnetic induction is

Question # 3

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

Question # 4

The induced current in a conductor depends upon

Question # 5

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 # 6

The induced current in the loop can be increased by:

Question # 7

Eddy current is produced when:

Question # 8

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

Question # 9

Which of the following is most suitable as the core of transformer

Question # 10

The practical application of the phenomenon of Mutual induction is

Question # 11

The change of magnetic flux through a circuit will produce

Question # 12

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

Question # 13

Transformer is used to

Question # 14

A coil of constant area is placed in a constant magnetic field. An induced current is produced in the coil when:

Question # 15

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

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 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
4 A.C. can be measure with the help of
A. Nuclear effect
B. Magnetic effect
C. Chemical effect
D. Heating effect
5 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
6 An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic feild
D. Constant electric field
7 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
8 The phenomenon of generation of induced emf is called
A. Electrostatic induction
B. Magnetic induction
C. Electromagnetic induction
D. Electric induction
9 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
10 The phenomenon of generation of induced emf is called:
A. Electrostatic induced
B. Magnetic induced
C. Electromagnetic induced
D. Electric induced

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