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

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

Question # 2

Lenz's law presented in

Question # 3

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

Question # 4

Eddy current is produced when:

Question # 5

The jerks in D.C. motor are created by the use of.

Question # 6

One henry is equal to

Question # 7

The working principle of transformer is.

Question # 8

the core of transformer is laminated so reduce.

Question # 9

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

Question # 10

A.C is converted into D.C by

Question # 11

Which of the following quantities remain constant in step up transformer?

Question # 12

The device in which induced emf is statically induced emf is:

Question # 13

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

Question # 14

The mutual inductance of the coils depends upon.

Question # 15

If magnetic field is doubled then magnetic energy density becomes.

Question # 16

The motional emf depends upon the

Question # 17

Eddy current is one cause energy loss 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 The working principle of transformer is.
A. Self induction
B. Faraday's law
C. Mutual induction
D. Electromagnetic induction
2 The self induction emf is some times called.
A. Motional emf
B. Constant emf
C. Back emf
D. Variable emf
3 A.C is converted into D.C by
A. Dynamo
B. Rectifier
C. Motor
D. Transformer
4 Lenz's law was given by Heinrich lenz in:
A. 1894
B. 1904
C. 1854
D. 1834
5
Question Image
6 Lenz's law presented in
A. 1834
B. 1934
C. 1826
D. 1836
7 In D.C. generator, split rings act as.
A. Capacitor
B. Commutator
C. Resistor
D. Inductor
8 When back emf in motor is zero, it draws.
A. Zero current
B. Minimum current
C. Maximum current
D. Steady current
9 If D.C. input for step up transformer, the output is
A. Zero
B. High
C. Low
D. May be high or low
10 Which one is not present in A.C. generator.
A. Armature
B. Magnet
C. Slip rings
D. Commutator

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