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 motional emf is give by

Question # 2

Which of the following quantities remain constant in step up transformer?

Question # 3

If force in the direction of velocity of conductor,  then induced current is directed,

Question # 4

By winding the coil around a less magnetic core, self induction.

Question # 5

Eddy current is one cause energy loss in

Question # 6

Lenz's law is a consequence of the law of conservation of

Question # 7

Self induction does not depend on

Question # 8

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

Question # 9

When the back emf is zero, its draws.

Question # 10

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

Question # 11

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

Question # 12

If speed of rotation of a generator is doubled the output voltage will be.

Question # 13

Electromagnetic induction obeys law of conservation

Question # 14

When motor is just started, back emf is almost.

Question # 15

Transformer is used to change

Question # 16

Commutator was invented in

Question # 17

When back emf in motor is zero, it draws.

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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 Lenz's law presented in
A. 1834
B. 1934
C. 1826
D. 1836
3 The Si unit of Mutual inductance is:
A. VA-1S-1
B. VAS-1
C. VSA-1
D. ASV-1
4 Commentator was invented by
A. Henry
B. Ousted
C. Maxwell
D. William sturgeon
5 The emf induced by the motion of a conductor across a magnetic field is called:
A. Motional emf
B. Rotational emf
C. Induced emf
D. All of above
6 The mutual inductance between two coils depends upon their
A. Size
B. Core material
C. Size, core material and separation
D. Separation
7 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
8 The Lenz's law fulfils.
A. Law of conservation of energy
B. Law of conservation of charge
C. Law of conservation of momentum
D. Kirchhoff's law
9 Electromagnetic induction obeys law of conservation
A. Charge
B. Energy
C. Momentum
D. Mass
10 The winding of the electromagnet in motor are usually called.
A. Magnetic coils
B. Field coils
C. Electric coils
D. electric o electric coils

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