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 in a conductor depends upon:

Question # 2

Split rings act as

Question # 3

The Phenomenon of generation of induced emf is called

Question # 4

Step up transformer has a transformation ratio of 3:2. What is the voltage in secondary, if voltage in primary is 30V:

Question # 5

Back emf is produced due to

Question # 6

The SI unit of magnetic induction is

Question # 7

The unit of induced emf is:

Question # 8

The change of magnetic flux through a circuit will produce

Question # 9

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

Question # 10

The magnitude of induced emf depends upon the

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

Self inducede e.m.f. is also called

Question # 15

An induced current can be produced by

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 An emf is set up in a conductor when it:
A. Is kept in a magnetic field
B. Is kept in an electric field
C. Moves across a magnetic field
D. Both A and B
2 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)
3 Micheal Faraday and joseph Henry belong respectively to:
A. USA and England
B. England and France
C. England and USA
D. USA and France
4 When there is no relative motion between the magnet and coil, the galvanometer indicated
A. No current in the circuit
B. An increasing current
C. A decreasing current
D. A constant current
5 The change of magnetic flux through a circuit will produce
A. Magnetic Field
B. Electric Field
C. emf
D. a.c
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 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
8 In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:
A. Motion emf
B. Electrostatic emf
C. Induced emf
D. Both A and B
9 Michael Faraday and Joseph Henry belong respectively to
A. USA and England
B. England and France
C. England and USA
D. USA and France
10 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

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