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

The unit of induced emf is

Question # 2

The Si unit of Mutual inductance is:

Question # 3

B2/2p is the expression of.

Question # 4

DC generator by william Sturgeon in:

Question # 5

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

Question # 6

Energy density of an inductor is:

Question # 7

1 Henry =

Question # 8

For inducing emf in a coil the basic requirement is that:

Question # 9

The motional emf depends upon the

Question # 10

Electric current produces magnetic field, was suggested by.

Question # 11

Step up transfer has a transformation ratio of 3:2. What is the voltage in secondary , If voltage in primary is 30 V?

Question # 12

the core of transformer is laminated so reduce.

Question # 13

Energy stored in inductor is.

Question # 14

Lenz's law deals with

Question # 15

The self induction emf is some times called.

Question # 16

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

Question # 17

When a conductor moves across a magnetic field an emf is set up this emf is called.

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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 When the back emf is zero, its draws.
A. Zero current
B. Minimum current
C. Maximum current
D. Steady current
3 Step up transformer is used.
A. Step up D.C. voltage
B. Step up A.C. voltage
C. Step up both A.C and D.C.
D. Step up A.C. current
4 When the back emf in a current is zero, it draws
A. Zero current
B. Maximum current
C. Minimum current
D. Steady average current
5 When a conductor moves across a magnetic field an emf is set up this emf is called.
A. Variable emf
B. Constant emf
C. Back emf
D. Induced emf
6 Electromagnetic induction is exactly according to law of:
A. Momentum
B. Charge
C. Energy
D. Mass
7 Output of D.C. motor is
A. A.C. energy
B. Mechanical energy
C. Chemical energy
D. D.C. energy
8 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
9 Commutator was invented in
A. 1834
B. 1820
C. 1840
D. 1835
10 If speed of rotation of a generator is doubled the output voltage will be.
A. Remain same
B. Double
C. Four time
D. One half

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