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

B2/2p is the expression of.

Question # 2

1 Henry =

Question # 3

A step up transformer is used 120 V line to provide 240 V. If primary coil has 100 turns the number of turns is secondary is.

Question # 4

The working principle of transformer is.

Question # 5

The magnitude of back emf:

Question # 6

The direction of induced current is always so as to oppose the change which causes the current, this is the statement of

Question # 7

The motional emf developed in a conduction depends upon.

Question # 8

The mutual inductance between two coils depends upon their

Question # 9

Output of D.C. motor is

Question # 10

If we make magnetic field stronger the value of induced current is.

Question # 11

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

Question # 12

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

Question # 13

With the speed of motor, magnitude of back emf

Question # 14

Eddy current is one cause energy loss in

Question # 15

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

Question # 16

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

Question # 17

Electric current produces magnetic field, was suggested 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 Mutual induction has a practical role in the performance of the.
A. Radio choke
B. Transformers
C. A.C. Generator
D. D.C. Generator
2 With the speed of motor, magnitude of back emf
A. Remain same
B. Increase
C. Decrease
D. First increases then decreases
3 The mutual inductance between two coils depends upon their
A. Size
B. Core material
C. Size, core material and separation
D. Separation
4 In self induction A coil is connected in__________ with battery and a rheostat.
A. Parallel
B. Series
C. Both A and B
D. None of above
5 The movement of conductor in magnetic field produces electrical current was discovered in:
A. 1931
B. 1731
C. 1842
D. 1831
6 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
7 Lenz's law deals with
A. Magnitude of emf
B. Direction emf
C. Direction of induced current
D. Resistance
8 Commutator was invented by:
A. William bills
B. William Gates
C. William tells
D. William Sturgeon
9 Lenz's law was given by Heinrich lenz in:
A. 1894
B. 1904
C. 1854
D. 1834
10 Output of D.C. motor is
A. A.C. energy
B. Mechanical energy
C. Chemical energy
D. D.C. energy

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