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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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 15 Online MCQ's Test"

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Physics ICS Part 2 Chapter 15 Online MCQ's Test

00:00
Question # 1

In D.C. generator, split rings act as.

Question # 2

The unit of induced emf is

Question # 3

The mutual inductance between two coils depends upon their

Question # 4

Unit of self inductance is

Question # 5

For step down transformer

Question # 6

What is the co-efficient of mutual inductance, when the magnetic flux changes by 2 x 10-2 Wb, and change in current is 0.01 A?

Question # 7

Efficiency of transformer does not affected by

Question # 8

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

Question # 9

The induced emf in a coil is proportional to:

Question # 10

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

Question # 11

A real transformer does not change.

Question # 12

With the speed of motor, magnitude of back emf

Question # 13

The current induced can be increased by:

Question # 14

The motional emf developed in a conduction depends upon.

Question # 15

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

Question # 16

The north pole of a magnet is brought near a metallic ring. The direction of induced current in the ring will be:

Question # 17

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

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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 Lenz's law presented in
A. 1834
B. 1934
C. 1826
D. 1836
2 If force in the direction of velocity of conductor,  then induced current is directed,
A. Anti clockwise
B. Clock wise
C. At equilibrium
D. None of above
3 The working principle of transformer is.
A. Self induction
B. Faraday's law
C. Mutual induction
D. Electromagnetic induction
4 The application of mutual induction is a.
A. D.C. motor
B. Radio
C. Television
D. Transformer
5 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
6 What is the co-efficient of mutual inductance, when the magnetic flux changes by 2 x 10-2 Wb, and change in current is 0.01 A?
A. 2 H
B. 3 H
C. 1/2 H
D. Zero
7 The Direction of induced current is always so as to oppose the change which causes the current, is:
A. Faraday's law
B. Lenz's law
C. Ohm's law
D. Kirchhoff' s1ast rule
8 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
9 Energy stored in inductor is.
A. 1/2 L I2
B. 1/2 LI
C. 1/2 L2I
D. 1/2 L2I2
10
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