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

When a coil is moved in a uniform magnetic field, an induced emf is produced due of change in

Question # 2

B2/2p is the expression of.

Question # 3

Lenz's law deals with

Question # 4

Lenz's law was given by Heinrich lenz in:

Question # 5

Lenz's law presented in

Question # 6

When motor is just started, back emf is almost.

Question # 7

Commutator was invented by:

Question # 8

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

Question # 9

Induced emf in A.C. generator can be increased by

Question # 10

The motional emf depends upon the

Question # 11

In self induction A coil is connected in__________ with battery and a rheostat.

Question # 12

The illustration of the phenomenon of mutual induction is in the device of

Question # 13

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 # 14

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

Question # 15

The emf induced by the motion of a conductor across a magnetic field is called:

Question # 16

If we make magnetic field stronger the value of induced current is.

Question # 17

the core of transformer is laminated so reduce.

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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 The illustration of the phenomenon of mutual induction is in the device of
A. Transformer
B. Inductor
C. A.C. Generator
D. Ammeter
2 A.C. Generator based upon the
A. Lenz's law
B. Maxwell's relation
C. Faradays law of electromagnet induction
D. Mutual induction
3 Energy density of an inductor is:
A. UM=1/2μ/B2
B. Um = 2μ/B
C. UM = 1/2B2
D. Um = 2B2
4
Question Image
A. Lenz's law
B. Faraday's law
C. Ampere's law
D. None of these
5 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:
A. 0.2 henry
B. 0.1 henry
C. 0.8 henry
D. 0.04 henry
6 The current induced can be increased by:
A. Using a stronger magnetic field
B. Moving the loop faster
C. Replacing the loop bay coi of many turns
D. All of above
7 If the north pole of a magnet moves away from a metallic ring
A. Clockwise
B. Anticlockwise
C. First clockwise and then anticlockwise
D. None of above
8 SI unit of hennery which is.
A. VSA-1
B. VS-1 A
C. VS-1A-1
D. VSA
9 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
10 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

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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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