Second Year Physics Chapter 15 Online MCQ Test for 2nd Year Physics Chapter 15 Electromagnetic Induction Preparation

FSC Part 2 Physics
Chapter 15 Test

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Physics FSC Part 2 Chapter 15 Online MCQ's Test

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Question # 1

Electromagnetic induction is exactly according to law of:

Question # 2

One henry is equal to

Question # 3

The motional emf developed in a conduction depends upon.

Question # 4

The jerks in D.C. motor are created by the use of.

Question # 5

the core of transformer is laminated so reduce.

Question # 6

When back emf in motor is zero, it draws.

Question # 7

The current induced can be increased by:

Question # 8

Unit of self inductance is

Question # 9

The mutual inductance of the coils depends upon.

Question # 10

If D.C. input for step up transformer, the output is

Question # 11

When the back emf is zero, its draws.

Question # 12

Self induction does not depend on

Question # 13

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

Question # 14

The direction of induced current is always so as to oppose the change which causes the current is:

Question # 15

1 Henry =

Question # 16

Which one is not present in A.C. generator.

Question # 17

The motional emf depends upon the

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FSC Part 2 Physics Chapter 15 Online Test MCQ's

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is.
A. NwAB
B. 2pi f
C. Maximum
D. Zero
2 A.C is converted into D.C by
A. Dynamo
B. Rectifier
C. Motor
D. Transformer
3 Lenz's law presented in
A. 1834
B. 1934
C. 1826
D. 1836
4 The direction of induced current is always so as to oppose the change which causes the current, this is the statement of
A. Lenz's law
B. Faraday's law
C. Ampere's law
D. Coulomb's law
5 Commentator was invented by
A. Henry
B. Ousted
C. Maxwell
D. William sturgeon
6 What is the co-efficient of mutual inductance, when the magnetic flux changes by 2 x 10-2 Wb, and change in current is 0.01 A?
A. 2 H
B. 3 H
C. 1/2 H
D. Zero
7 B2/2p is the expression of.
A. Lenz's law
B. Magnetic energy
C. Magnetic energy density
D. Back emf
8 SI unit of hennery which is.
A. VSA-1
B. VS-1 A
C. VS-1A-1
D. VSA
9 For inducing emf in a coil the basic requirement is that:
A. Flux should link the coil
B. Change in flux should link the coil
C. Coil should form a closed loop
D. Both (b) and (c) are true
10 Lenz's law is a consequence of the law of conservation of
A. Charge
B. Momentum
C. Energy
D. Angular momentum

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