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

The magnitude of back emf:

Question # 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?

Question # 3

The Lenz's law fulfils.

Question # 4

If D.C. input for step up transformer, the output is

Question # 5

Step up transformer is used.

Question # 6

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

Question # 7

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

Question # 8

Output of D.C. motor is

Question # 9

Energy stored in an inductor is:

Question # 10

The motional emf is give by

Question # 11

A current generator device converts:

Question # 12

The mutual inductance of the coils depends upon.

Question # 13

Eddy current is one cause energy loss in

Question # 14

In case of inductor , energy is stored in the

Question # 15

The unit of induced emf is

Question # 16

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

Question # 17

Self inductance of a long solenoid is given by

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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 When back emf in motor is zero, it draws.
A. Zero current
B. Minimum current
C. Maximum current
D. Steady current
2 Transformer is used to change
A. Electric power
B. Magnetic field
C. Alternating voltage
D. Phase of A.C.
3 The device in the circuit that consume electrical energy are known as.
A. Dissipaters
B. Generator
C. Load
D. Motors
4 A.C is converted into D.C by
A. Dynamo
B. Rectifier
C. Motor
D. Transformer
5 The mutual inductance between two coils depends upon their
A. Size
B. Core material
C. Size, core material and separation
D. Separation
6 Electromagnetic induction obeys law of conservation
A. Charge
B. Energy
C. Momentum
D. Mass
7 The jerks in D.C. motor are created by the use of.
A. Armature
B. Commutators
C. Split rings
D. Source of emf
8 1 Henry =
A. VSA-1
B. VS-1A-1
C. V-1SA
D. VSA-2
9 If the coil is wound on iron core, the flux through it.
A. Decreases
B. Becomes zero
C. Increases
D. Remains constant
10 The negative sign with induced emf in Faraday's law is in accordance with
A. Lenz's law
B. Amperes law
C. Boyle's law
D. Gauss law

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