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

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

Question # 2

The motional emf depends upon the

Question # 3

A 50 mH coil carries a current of 2.0 a , then energy stored in tis magnetic field is.

Question # 4

Energy stored in inductor is.

Question # 5

The illustration of the phenomenon of mutual induction is in the device of

Question # 6

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

Question # 7

When a coil is moved in a uniform magnetic field, an induced emf is produced due of change in

Question # 8

A real transformer does not change.

Question # 9

A metal rod of 1 m is moving at a speed of 1 ms-1 in a direction making an angle 30 o with 0.5 T magnetic field . The emf produced is.

Question # 10

B2/2p is the expression of.

Question # 11

A.C is converted into D.C by

Question # 12

When back emf in motor is zero, it draws.

Question # 13

Efficiency of transformer does not affected by

Question # 14

The magnitude of motional emf is given by

Question # 15

The only difference between the construction of D.C and A.C is.

Question # 16

In A.C. inductor behaves as

Question # 17

Lenz's law was given by Heinrich lenz in:

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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 DC generator by william Sturgeon in:
A. 1894
B. 1961
C. 1834
D. 1961
2 SI unit of hennery which is.
A. VSA-1
B. VS-1 A
C. VS-1A-1
D. VSA
3 When a coil is moved in a uniform magnetic field, an induced emf is produced due of change in
A. Flux density
B. Electric flux
C. Magnetic flux
D. Magnetic field strength
4 The jerks in D.C. motor are created by the use of.
A. Armature
B. Commutators
C. Split rings
D. Source of emf
5 Lenz's law is a consequence of the law of conservation of
A. Charge
B. Momentum
C. Energy
D. Angular momentum
6 Which one is not present in A.C. generator.
A. Armature
B. Magnet
C. Slip rings
D. Commutator
7 The north pole of a magnet is brought near a metallic ring. The direction of induced current in the ring will be:
A. Antoclockwise
B. Clockwise
C. First Clockwise and then Antoclockwise
D. First anticlockwise and then Clockwise
8 For step down transformer
A. Ns>Np
B. Np > Ns
C. Ns = Np
D. Ns > > > Np
9 Mutual induction has a practical role in the performance of the.
A. Radio choke
B. Transformers
C. A.C. Generator
D. D.C. Generator
10 The motional emf developed in a conduction depends upon.
A. Length
B. Orientation
C. Magnetic field
D. All of the above

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  • sania  saeed

    sania saeed

    16 Nov 2017

    ye log poore number nai dete jan bhooj kar

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  • ayesha

    ayesha

    11 May 2017

    2 mcqs k ans ghalat hain irrespective k wo book ki statements hain

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