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

00:00
Question # 1

The unit of induced emf is

Question # 2

Eddy current is one cause energy loss in

Question # 3

Commutator was invented in

Question # 4

The Si unit of Mutual inductance is:

Question # 5

split rings are used in

Question # 6

A.C is converted into D.C by

Question # 7

The magnitude of back emf:

Question # 8

The  Lenz's law is also statement of:

Question # 9

One henry is equal to

Question # 10

The Direction of induced current is always so as to oppose the change which causes the current, is:

Question # 11

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

Question # 12

Electric current produces magnetic field, was suggested by.

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

With the speed of motor, magnitude of back emf

Question # 17

DC generator by william Sturgeon in:

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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 If 10 A current passes through 100 mH inductor, then energy stored is.
A. 100 J
B. 5 J
C. 20 J
D. Zero
2 Which of the following quantities remain constant in step up transformer?
A. Current
B. Voltage
C. Power
D. Heat
3 The jerks in D.C. motor are created by the use of.
A. Armature
B. Commutators
C. Split rings
D. Source of emf
4 Energy stored in inductor is.
A. 1/2 L I2
B. 1/2 LI
C. 1/2 L2I
D. 1/2 L2I2
5 A.C is converted into D.C by
A. Dynamo
B. Rectifier
C. Motor
D. Transformer
6 Michael Faraday and Joseph Henry belongs to
A. England and USA
B. France and USA
C. China and USA
D. None of these
7 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
8 Eddy current is produced when:
A. A metal is light in varying magnetic field
B. A metal is kept in steady magnetic field
C. A circular coil is placed in a steady magnetic field
D. A current is passed through a circualr coil
9 One henry is equal to
A. 1 ohm x 1 sec
B. 1 ohm x 1 hertz
C. 1 ohm x 1 metre
D. All of above
10 Efficiency of transformer does not affected by
A. Input voltage
B. Core of transformer
C. Insulation between sheet
D. Resistance of coils

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