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

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 # 2

When a conductoris moved across a magnetic field:

Question # 3

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

Question # 4

The unit of induced emf is:

Question # 5

The induced emf in a coil is proportional to:

Question # 6

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 # 7

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

Question # 8

The induced current in the loop can be Increased by

Question # 9

Self inducede e.m.f. is also called

Question # 10

An emf is set up in a conductor when it

Question # 11

A.C. can be measure with the help of

Question # 12

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

Question # 13

Michael Faraday and Joseph Henry belong respectively to

Question # 14

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

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 In magnet-coil experiment, emf can be produced by:
A. Keeping the coil stationary and moving the magnet
B. Keeping the magnet stationary and moving the coil
C. Relative motion of the loop and magnet
D. Any one of above
2 Self inducede e.m.f. is also called
A. Motional e.m.f.
B. Thermistor
C. Electrostatic induction
D. Back e.m.f
3 Transformer is used to
A. Increase alternating current
B. Increase d.c voltage
C. Increase & Decrease emf
D. All answers are right
4 A device which converts Electrical energy into mechanical energy is called as
A. Transformer
B. Generator
C. Motor
D. All of these
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 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
7 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
8 Micheal Faraday and joseph Henry belong respectively to:
A. USA and England
B. England and France
C. England and USA
D. USA and France
9 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
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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