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

00:00
Question # 1

By winding the coil around a less magnetic core, self induction.

Question # 2

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

Question # 3

Electromagnetic induction is exactly according to law of:

Question # 4

The mutual inductance of the coils depends upon.

Question # 5

The Lenz's law fulfils.

Question # 6

Lenz's law presented in

Question # 7

Unit of self inductance is

Question # 8

Eddy current is produced when:

Question # 9

A.C is converted into D.C by

Question # 10

One henry is equal to

Question # 11

The current induced can be increased by:

Question # 12

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

Question # 13

Self inductance of a long solenoid is given by

Question # 14

Lenz's law is a consequence of the law of conservation of

Question # 15

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

Question # 16

In a coil current change from 2 to 4 A in .05 s . If the average induced emf is 8 V then coefficient of self-inductance is:

Question # 17

Energy stored in an inductor 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 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
2 Transformer is used to change
A. Electric power
B. Magnetic field
C. Alternating voltage
D. Phase of A.C.
3 The magnitude of back emf:
A. Increases with sped of motor
B. Decreases with speed of motor
C. Remains same 
D. None of above
4 If a step up transformer were 100% efficient the primary and secondary winging's would have the same.
A. Current
B. Power
C. Voltage
D. Direction of winding
5 By winding the coil around a less magnetic core, self induction.
A. Will increase
B. Will decrease
C. Remain same
D. First increase then decrease
6 1 Henry =
A. VSA-1
B. VS-1A-1
C. V-1SA
D. VSA-2
7
Question Image
A. Lenz's law
B. Faraday's law
C. Ampere's law
D. None of these
8 If the coil is wound on iron core, the flux through it.
A. Decreases
B. Becomes zero
C. Increases
D. Remains constant
9 A.C is converted into D.C by
A. Dynamo
B. Rectifier
C. Motor
D. Transformer
10 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

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