Second Year Physics Chapter 15 Online MCQ Test for 2nd Year Physics Chapter 15 Electromagnetic Induction Preparation

FSC Part 2 Physics
Chapter 15 Test

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Physics FSC Part 2 Chapter 15 Online MCQ's Test

00:00
Question # 1

In A.C. inductor behaves as

Question # 2

A 50 mH coil carries a current of 2.0 a , then energy stored in tis magnetic field is.

Question # 3

The emf induced by the motion of a conductor across a magnetic field is called:

Question # 4

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

Question # 5

If the coil is wound on iron core, the flux through it.

Question # 6

For step down transformer

Question # 7

The Lenz's law fulfils.

Question # 8

split rings are used in

Question # 9

The Si unit of Mutual inductance is:

Question # 10

The magnitude of back emf:

Question # 11

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

Question # 12

The motional emf developed in a conduction depends upon.

Question # 13

When motor is just started, back emf is almost.

Question # 14

A current generator device converts:

Question # 15

Electric current produces magnetic field, was suggested by.

Question # 16

Michael Faraday and Joseph Henry belongs to

Question # 17

When a motor is over loaded then the magnitude of back emf.

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FSC 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 device in which induced emf is statically induced emf is:
A. Transforms
B. AC generator
C. Alevator
D. Dynamo
2 In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is.
A. NwAB
B. 2pi f
C. Maximum
D. Zero
3 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
4 Energy density of an inductor is:
A. UM=1/2μ∘/B2
B. Um = 2μ∘/B
C. UM = 1/2B2/μ∘
D. Um = 2B2/μ∘
5 The motional emf developed in a conduction depends upon.
A. Length
B. Orientation
C. Magnetic field
D. All of the above
6 B2/2p is the expression of.
A. Lenz's law
B. Magnetic energy
C. Magnetic energy density
D. Back emf
7 The illustration of the phenomenon of mutual induction is in the device of
A. Transformer
B. Inductor
C. A.C. Generator
D. Ammeter
8 A.C is converted into D.C by
A. Dynamo
B. Rectifier
C. Motor
D. Transformer
9 The motional emf depends upon the
A. Length of conductor
B. Speed of conductor
C. Strength of magnet
D. All of these
10 Which one is not present in A.C. generator.
A. Armature
B. Magnet
C. Slip rings
D. Commutator

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