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

00:00
Question # 1

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

Question # 2

DC generator by william Sturgeon in:

Question # 3

split rings are used in

Question # 4

The Lenz's law fulfils.

Question # 5

Energy density in an inductor is.

Question # 6

The magnitude of motional emf is given by

Question # 7

Electromagnetic induction is exactly according to law of:

Question # 8

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

Question # 9

When the back emf is zero, its draws.

Question # 10

A metal rod of 1 m is moving at a speed of 1 ms-1 in a direction making an angle 30 o with 0.5 T magnetic field . The emf produced is.

Question # 11

A real transformer does not change.

Question # 12

If magnetic field is doubled then magnetic energy density becomes.

Question # 13

A current generator device converts:

Question # 14

Lenz's law was given by Heinrich lenz in:

Question # 15

In case of inductor , energy is stored in the

Question # 16

Commutator was invented by:

Question # 17

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

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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 The motional emf developed in a conduction depends upon.
A. Length
B. Orientation
C. Magnetic field
D. All of the above
2 Mutual induction play role in.
A. Generator
B. D.C. motor
C. Galvanometer
D. Transformer
3 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
4 The jerks in D.C. motor are created by the use of.
A. Armature
B. Commutators
C. Split rings
D. Source of emf
5 the core of transformer is laminated so reduce.
A. Magnetic loss
B. Hysteresis loss
C. Eddy current loss
D. Electric loss
6 A real transformer does not change.
A. Voltage level
B. Current level
C. Power level
D. Frequency
7 The illustration of the phenomenon of mutual induction is in the device of
A. Transformer
B. Inductor
C. A.C. Generator
D. Ammeter
8 Lenz's law is a consequence of the law of conservation of
A. Charge
B. Momentum
C. Energy
D. Angular momentum
9 When the back emf in a current is zero, it draws
A. Zero current
B. Maximum current
C. Minimum current
D. Steady average current
10 The magnitude of back emf:
A. Increases with sped of motor
B. Decreases with speed of motor
C. Remains same 
D. None of above

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