2nd Year Physics Chapter 15 Online MCQ Test for 12th Class Physics Chapter 15 (Electromagnetic Induction)

ICS Part 2 Physics
Chapter 15 Test

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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 15 Online MCQ's Test"

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Physics ICS Part 2 Chapter 15 Online MCQ's Test

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Question # 1

When a conductor moves across a magnetic field an emf is set up this emf is called.

Question # 2

In A.C. inductor behaves as

Question # 3

Efficiency of transformer does not affected by

Question # 4

The motional emf depends upon the

Question # 5

Commentator was invented by

Question # 6

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

Question # 7

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

Question # 8

The unit of induced emf is

Question # 9

The induction can be increased by winding the wire around a core made of.

Question # 10

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

Question # 11

Step up transformer is used.

Question # 12

The negative sign with induced emf in Faraday's law is in accordance with

Question # 13

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

Question # 14

Mutual induction play role in.

Question # 15

A.C is converted into D.C by

Question # 16

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

Question # 17

If 10 A current passes through 100 mH inductor, then energy stored is.

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ICS 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 Unit of self inductance is
A. Weber
B. Tesla
C. Henry
D. Farad
2 If we make magnetic field stronger the value of induced current is.
A. Decreased
B. Increased
C. Vanishes
D. Remain constant
3 A current generator device converts:
A. Mechanical energy into chemical energy
B. Chemical energy into electrical energy
C. Mechanical energy into electrical energy
D. Both b and c
4 DC generator by william Sturgeon in:
A. 1894
B. 1961
C. 1834
D. 1961
5 The application of mutual induction is a.
A. D.C. motor
B. Radio
C. Television
D. Transformer
6 Energy density of an inductor is:
A. UM=1/2μ/B2
B. Um = 2μ/B
C. UM = 1/2B2
D. Um = 2B2
7 The motional emf depends upon the
A. Length of conductor
B. Speed of conductor
C. Strength of magnet
D. All of these
8 Lenz's law is a consequence of the law of conservation of
A. Charge
B. Momentum
C. Energy
D. Angular momentum
9 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
10 One henry is equal to
A. 1 ohm x 1 sec
B. 1 ohm x 1 hertz
C. 1 ohm x 1 metre
D. All of above

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