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 motional e.m.f depends upon the

Question # 2

An induced current can be produced by

Question # 3

When a conductoris moved across a magnetic field:

Question # 4

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

Question # 5

The phenomenon of generation of induced emf is called

Question # 6

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

Question # 7

An emf is set up in a conductor when it:

Question # 8

The unit of induced emf is:

Question # 9

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

Question # 10

Referring to above figure, current in the coil P grows from zero to its maximum value:

Question # 11

The product of induced current and the resistance of the wire through which the current is passing is called:

Question # 12

The induced current in the loop can be Increased by

Question # 13

Plan of a coil makes an angle of 20º with the lines of magnetic field. The angle between B and vector area of plane of coil is:

Question # 14

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

Question # 15

Which of the following quantities remain constant in step up transformer?

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic field
D. Constant electric field
2 When there is no relative motion between the magnet and coil, the galvanometer indicates:
A. No current in circuit
B. An increasing current
C. A decreasing current
D. Either B or C
3 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)
4 The law of electromagnetic induction is related to:
A. Coulomb
B. Ampere
C. Faraday
D. Lenz
5 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
6 The device in which induced emf is statically induced emf is:
A. Transformer
B. AC generator
C. Alternator
D. Dynamo
7 The induced emf in a coil is proportional to:
A. Magnetic flux through a coil
B. Rate of change of magnetic flux through the coil
C. Area of the coil
D. Product of magnetic flux and area of the coil
8 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
9 Self inducede e.m.f. is also called
A. Motional e.m.f.
B. Thermistor
C. Electrostatic induction
D. Back e.m.f
10 Michael Faraday and Joseph Henry belong respectively to
A. USA and England
B. England and France
C. England and USA
D. USA and France

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