ECAT Pre Engineering Physics Chapter 15 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction

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Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction

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Question # 1

The induced current in the loop can be increased by:

Question # 2

What is the coefficient of mutual inductance, when the magnetic flux changes by 2 X 10-2Wb, and change in current is 0.01 A?

Question # 3

The phenomenon of generation of induced emf is called:

Question # 4

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

Question # 5

An induced current can be produced by:

Question # 6

Michael Faraday and Joseph Henry belong respectively to

Question # 7

When a conductor moved with its length parallel to the lines of magnetic fled:

Question # 8

When a conductoris moved across a magnetic field:

Question # 9

An emf is set up in a conductor when it

Question # 10

The magnitude of induced emf depends upon the:

Question # 11

The induced current in the loop can be Increased by

Question # 12

The practical application of the phenomenon of Mutual induction is

Question # 13

In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:

Question # 14

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

Question # 15

The rate change of area expressed is expressed in:

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 The rate change of area expressed is expressed in:
A. None of these
B. ms-1
C. m2s-2
D. ms-2
2 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:
A. Zero
B. Of smaller magnitude
C. Of larger magnitude
D. Sometimes B, sometimes C
3 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
4 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
5 The practical application of the phenomenon of Mutual induction is
A. Transformers
B. Generator
C. Motor
D. All of these
6 Which of the following is most suitable as the core of transformer
A. Soft iron
B. Alinco
C. Steel
D. None of these
7 The Phenomenon of generation of induced emf is called
A. Electrostatic induction
B. Magnetic induction
C. Electromagnetic induction
D. Electric induction
8 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
9 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)
10 Transformer is used to
A. Increase alternating current
B. Increase d.c voltage
C. Increase & Decrease emf
D. All answers are right

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