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 Si unit of Mutual inductance is:

Question # 2

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

Question # 3

SI unit of hennery which is.

Question # 4

Lenz's law presented in

Question # 5

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

Question # 6

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

Question # 7

A.C is converted into D.C by

Question # 8

The direction of induced current is always so as to oppose the change which causes the current, this is the statement of

Question # 9

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

Question # 10

Self induction does not depend on

Question # 11

Energy stored in an inductor is:

Question # 12

Energy density of an inductor is:

Question # 13

DC generator by william Sturgeon in:

Question # 14

If the north pole of a magnet moves away from a metallic ring

Question # 15

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

Question # 16

If magnetic field is doubled then magnetic energy density becomes.

Question # 17

1 Henry =

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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 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
2 The winding of the electromagnet in motor are usually called.
A. Magnetic coils
B. Field coils
C. Electric coils
D. electric o electric coils
3 Mutual induction play role in.
A. Generator
B. D.C. motor
C. Galvanometer
D. Transformer
4 If speed of rotation of a generator is doubled the output voltage will be.
A. Remain same
B. Double
C. Four time
D. One half
5 The magnitude of back emf:
A. Increases with sped of motor
B. Decreases with speed of motor
C. Remains same 
D. None of above
6 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
7 Which one is not present in A.C. generator.
A. Armature
B. Magnet
C. Slip rings
D. Commutator
8 Step up transformer is used.
A. Step up D.C. voltage
B. Step up A.C. voltage
C. Step up both A.C and D.C.
D. Step up A.C. current
9 The emf induced by the motion of a conductor across a magnetic field is called:
A. Motional emf
B. Rotational emf
C. Induced emf
D. All of above
10 Step up transfer has a transformation ratio of 3:2. What is the voltage in secondary , If voltage in primary is 30 V?
A. 45 V
B. 15 V
C. 90 V
D. 300 V

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