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

Motional emf is called motional:

Question # 2

The phenomenon of generation of induced emf is called

Question # 3

Referring to above figure, a changing current in coil P can be produced:

Question # 4

The magnitude of induced emf depends upon the

Question # 5

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

Question # 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:

Question # 7

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

Question # 8

The device in which induced emf is statically induced emf is:

Question # 9

The practical application of the phenomenon of Mutual induction is

Question # 10

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

Question # 11

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

Question # 12

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:

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

The induced current in a conductor depends upon

Question # 15

An emf is set up in a conductor when it

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 Referring to above figure, due to change in current in the coil P, the change in magnetic flux:
A. Is associated with coil P
B. Is associated with coil S
C. Causes an induced current is coil S
D. All of these
2 Which of the following quantities remain constant in step up transformer?
A. Current
B. Voltage
C. Power
D. Heat
3 The phenomenon of generation of induced emf is called:
A. Electrostatic induced
B. Magnetic induced
C. Electromagnetic induced
D. Electric induced
4 A device which converts Electrical energy into mechanical energy is called as
A. Transformer
B. Generator
C. Motor
D. All of these
5 An induced current can be produced by
A. Constant magnetic field
B. Changing magnetic field
C. Varying electric field
D. Constant electric field
6 The direction of induced current is always so as to oppose the cause which produces it. This is
A. Lenz's law
B. Ampere's law
C. Faraday's law
D. Coulomb's law
7 An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic feild
D. Constant electric field
8 Motional emf is called motional:
A. Electromagnetic force and is measured in newtons
B. Electromotive force and is measured in volt
C. Electromotive force and is measured in newtons
D. Electromagnetic force and is measured in volts
9 Micheal Faraday and joseph Henry belong respectively to:
A. USA and England
B. England and France
C. England and USA
D. USA and France
10 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

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