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

Faraday's law of electromagnetic induction has been used in the construction of:

Question # 2

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

Question # 3

Michael Faraday and Joseph Henry belong respectively to

Question # 4

The unit of induced emf is:

Question # 5

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

Question # 6

In magnet-coil experiment, emf can be produced by

Question # 7

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

Question # 8

An emf is set up in a conductor when it:

Question # 9

The induced emf in a coil is proportional to:

Question # 10

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

Question # 11

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

Question # 12

An induced current can be produced by

Question # 13

An induced current can be produced by:

Question # 14

An emf is set up in a conductor when it:

Question # 15

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

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 The law of electromagnetic induction is related to:
A. Coulomb
B. Ampere
C. Faraday
D. Lenz
2 The unit of induced emf is:
A. Volt
B. Nm/As
C. Joule coul-1
D. Both A and C
3 A coil of constant area is placed in a constant magnetic field. An induced current is produced in the coil when:
A. The coil is distorted
B. The coil is rotated
C. The coil is neither distorted nor rotated
D. Both A and B
4 A coil of constant area is placed in a constant magnetic field. An include current is produced in the coil when:
A. The coil is destroyed
B. The coil is Rotated
C. The coil is neither destroyed nor rotated
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 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:
A. Also 20º

B. 70º

C. 90º

D. 180º
7 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
8 The motional e.m.f depends upon the
A. Length of a conductor
B. Strength of a magnet
C. Speed of the conductor
D. All of the above
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 The product of induced current and the resistance of the wire through which the current is passing is called:
A. Electromagnetic induction
B. induced emf
C. Induced current
D. Self induced

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