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

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Question # 1

Which of the following converts electrical energy into mechanical energy.

Question # 2

B2/2p is the expression of.

Question # 3

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

Question # 4

One henry is equal to

Question # 5

If 10 A current passes through 100 mH inductor, then energy stored is.

Question # 6

Induced emf in A.C. generator can be increased by

Question # 7

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 # 8

When motor is just started, back emf is almost.

Question # 9

The motional emf depends upon the

Question # 10

Mutual induction has a practical role in the performance of the.

Question # 11

For step down transformer

Question # 12

The current induced can be increased by:

Question # 13

Electric current produces magnetic field, was suggested by.

Question # 14

the core of transformer is laminated so reduce.

Question # 15

The mutual inductance between two coils depends upon their

Question # 16

1 Henry =

Question # 17

The illustration of the phenomenon of mutual induction is in the device 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 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
2 Lenz's law presented in
A. 1834
B. 1934
C. 1826
D. 1836
3 If D.C. input for step up transformer, the output is
A. Zero
B. High
C. Low
D. May be high or low
4 SI unit of hennery which is.
A. VSA-1
B. VS-1 A
C. VS-1A-1
D. VSA
5 When a coil is moved in a uniform magnetic field, an induced emf is produced due of change in
A. Flux density
B. Electric flux
C. Magnetic flux
D. Magnetic field strength
6 split rings are used in
A. A.C. generator
B. A.C. motor
C. Transformer
D. D.C. motor
7 In A.C. inductor behaves as
A. Capacitor
B. Resistor
C. Commutator
D. Transistor
8 Energy stored in an inductor is:
A. 1/2L2I
B. 1/2L2/I
C. 1/2LI2
D. 1/2LI
9 Electromagnetic induction is exactly according to law of:
A. Momentum
B. Charge
C. Energy
D. Mass
10 When the back emf in a current is zero, it draws
A. Zero current
B. Maximum current
C. Minimum current
D. Steady average current

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