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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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 15 Online MCQ's Test"

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Physics ICS Part 2 Chapter 15 Online MCQ's Test

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Question # 1

Efficiency of transformer does not affected by

Question # 2

Which one is not present in A.C. generator.

Question # 3

The movement of conductor in magnetic field produces electrical current was discovered in:

Question # 4

Electromagnetic induction is exactly according to law of:

Question # 5

Lenz's law was given by Heinrich lenz in:

Question # 6

In D.C. generator, split rings act as.

Question # 7

Commentator was invented by

Question # 8

Electric current produces magnetic field, was suggested by.

Question # 9

Output of D.C. motor is

Question # 10

Eddy current is one cause energy loss in

Question # 11

When the back emf is zero, its draws.

Question # 12

Michael Faraday and Joseph Henry belongs to

Question # 13

If a step up transformer were 100% efficient the primary and secondary winging's would have the same.

Question # 14

Transformer is used to change

Question # 15

When the back emf in a current is zero, it draws

Question # 16

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

Question # 17

The unit of induced emf is

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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 SI unit of hennery which is.
A. VSA-1
B. VS-1 A
C. VS-1A-1
D. VSA
2 Energy density of an inductor is:
A. UM=1/2μ/B2
B. Um = 2μ/B
C. UM = 1/2B2
D. Um = 2B2
3 1 Henry =
A. VSA-1
B. VS-1A-1
C. V-1SA
D. VSA-2
4 Mutual induction play role in.
A. Generator
B. D.C. motor
C. Galvanometer
D. Transformer
5 If a step up transformer were 100% efficient the primary and secondary winging's would have the same.
A. Current
B. Power
C. Voltage
D. Direction of winding
6 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
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 If magnetic field is doubled then magnetic energy density becomes.
A. Four times
B. Two times
C. Three times
D. Six times
9 Lenz's law deals with
A. Magnitude of emf
B. Direction emf
C. Direction of induced current
D. Resistance
10 The north pole of a magnet is brought near a metallic ring. The direction of induced current in the ring will be:
A. Antoclockwise
B. Clockwise
C. First Clockwise and then Antoclockwise
D. First anticlockwise and then Clockwise

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