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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Physics ICS Part 2 Chapter 15 Online MCQ's Test

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Question # 1

When a motor is over loaded then the magnitude of back emf.

Question # 2

Lenz's law presented in

Question # 3

Efficiency of transformer does not affected by

Question # 4

In A.C. inductor behaves as

Question # 5

EMF is induced due to change in

Question # 6

Output of D.C. motor is

Question # 7

The Si unit of Mutual inductance is:

Question # 8

Energy density in an inductor is.

Question # 9

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

Question # 10

Mutual induction has a practical role in the performance of the.

Question # 11

1 Henry =

Question # 12

For step down transformer

Question # 13

The winding of the electromagnet in motor are usually called.

Question # 14

A real transformer does not change.

Question # 15

In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is.

Question # 16

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

Question # 17

A.C is converted into D.C by

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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 Output of D.C. motor is
A. A.C. energy
B. Mechanical energy
C. Chemical energy
D. D.C. energy
2 A real transformer does not change.
A. Voltage level
B. Current level
C. Power level
D. Frequency
3
Question Image
4 SI unit of hennery which is.
A. VSA-1
B. VS-1 A
C. VS-1A-1
D. VSA
5 Electromagnetic induction is exactly according to law of:
A. Momentum
B. Charge
C. Energy
D. Mass
6 If the north pole of a magnet moves away from a metallic ring
A. Clockwise
B. Anticlockwise
C. First clockwise and then anticlockwise
D. None of above
7 The self induction emf is some times called.
A. Motional emf
B. Constant emf
C. Back emf
D. Variable emf
8 The induction can be increased by winding the wire around a core made of.
A. Copper
B. Silicon
C. Iron
D. Aluminum
9 The application of mutual induction is a.
A. D.C. motor
B. Radio
C. Television
D. Transformer
10 A.C is converted into D.C by
A. Dynamo
B. Rectifier
C. Motor
D. Transformer

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