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 working principle of transformer is.

Question # 2

Electric current produces magnetic field, was suggested by.

Question # 3

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

Question # 4

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

Question # 5

In A.C. inductor behaves as

Question # 6

Commentator was invented by

Question # 7

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

Question # 8

The emf induced by the motion of a conductor across a magnetic field is called:

Question # 9

The Lenz's law fulfils.

Question # 10

With the speed of motor, magnitude of back emf

Question # 11

The current induced can be increased by:

Question # 12

The  Lenz's law is also statement of:

Question # 13

Self inductance of a long solenoid is given by

Question # 14

The device in the circuit that consume electrical energy are known as.

Question # 15

For inducing emf in a coil the basic requirement is that:

Question # 16

The motional emf depends upon the

Question # 17

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

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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
Question Image
2 If D.C. input for step up transformer, the output is
A. Zero
B. High
C. Low
D. May be high or low
3 In self induction A coil is connected in__________ with battery and a rheostat.
A. Parallel
B. Series
C. Both A and B
D. None of above
4 Output of D.C. motor is
A. A.C. energy
B. Mechanical energy
C. Chemical energy
D. D.C. energy
5 Eddy current is produced when:
A. A metal is light in varying magnetic field
B. A metal is kept in steady magnetic field
C. A circular coil is placed in a steady magnetic field
D. A current is passed through a circualr coil
6 Energy density in an inductor is.
A. Directly proportional to magnetic field
B. Directly proportional to square of magnetic field
C. Inversely proportional to magnetic field
D. Inversely proportional to square of magnetic field
7 The Si unit of Mutual inductance is:
A. VA-1S-1
B. VAS-1
C. VSA-1
D. ASV-1
8 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
9 split rings are used in
A. A.C. generator
B. A.C. motor
C. Transformer
D. D.C. motor
10 A step up transformer is used 120 V line to provide 240 V. If primary coil has 100 turns the number of turns is secondary is.
A. 50
B. 100
C. 150
D. 200

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