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

Lenz's law presented in

Question # 2

The motional emf depends upon the

Question # 3

A.C. Generator based upon the

Question # 4

SI unit of hennery which is.

Question # 5

Eddy current is one cause energy loss in

Question # 6

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

Question # 7

Electric current produces magnetic field, was suggested by.

Question # 8

Energy density in an inductor is.

Question # 9

1 Henry =

Question # 10

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

Question # 11

When the back emf in a current is zero, it draws

Question # 12

The unit of induced emf is

Question # 13

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

Question # 14

Commutator was invented by:

Question # 15

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

Question # 16

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

Question # 17

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

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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 The device in the circuit that consume electrical energy are known as.
A. Dissipaters
B. Generator
C. Load
D. Motors
2 For inducing emf in a coil the basic requirement is that:
A. Flux should link the coil
B. Change in flux should link the coil
C. Coil should form a closed loop
D. Both (b) and (c) are true
3 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
4 With the speed of motor, magnitude of back emf
A. Remain same
B. Increase
C. Decrease
D. First increases then decreases
5 The  Lenz's law is also statement of:
A. Law of conservation of mass
B. Law of conservation of charge
C. Law of conservation of energy
D. Law of conservation of momentum
6 When the back emf is zero, its draws.
A. Zero current
B. Minimum current
C. Maximum current
D. Steady current
7 Self induction does not depend on
A. Number of turns of the coil
B. Area of cross section of the core
C. Nature of material of the core
D. Current through inductor
8 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
9 The jerks in D.C. motor are created by the use of.
A. Armature
B. Commutators
C. Split rings
D. Source of emf
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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