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

Energy stored in an inductor is:

Question # 2

The working principle of transformer is.

Question # 3

The motional emf is give by

Question # 4

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

Question # 5

Self induction does not depend on

Question # 6

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

Question # 7

If magnetic field is doubled then magnetic energy density becomes.

Question # 8

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

Question # 9

Electromagnetic induction obeys law of conservation

Question # 10

Energy density of an inductor is:

Question # 11

The only difference between the construction of D.C and A.C is.

Question # 12

The current induced can be increased by:

Question # 13

The mutual inductance between two coils depends upon their

Question # 14

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 # 15

Energy stored in inductor is.

Question # 16

Lenz's law was given by Heinrich lenz in:

Question # 17

When back emf in motor is zero, it draws.

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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 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
2 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
3 A real transformer does not change.
A. Voltage level
B. Current level
C. Power level
D. Frequency
4 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
5 Electromagnetic induction obeys law of conservation
A. Charge
B. Energy
C. Momentum
D. Mass
6 When a conductor moves across a magnetic field an emf is set up this emf is called.
A. Variable emf
B. Constant emf
C. Back emf
D. Induced emf
7 The device in which induced emf is statically induced emf is:
A. Transforms
B. AC generator
C. Alevator
D. Dynamo
8 Energy stored in an inductor is:
A. 1/2L2I
B. 1/2L2/I
C. 1/2LI2
D. 1/2LI
9 The magnitude of motional emf is given by
10 A current generator device converts:
A. Mechanical energy into chemical energy
B. Chemical energy into electrical energy
C. Mechanical energy into electrical energy
D. Both b and c

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  • sania  saeed

    sania saeed

    16 Nov 2017

    ye log poore number nai dete jan bhooj kar

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  • ayesha

    ayesha

    11 May 2017

    2 mcqs k ans ghalat hain irrespective k wo book ki statements hain

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