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

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Question # 1

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

Question # 2

Transformer is used to change

Question # 3

1 Henry =

Question # 4

The mutual inductance between two coils depends upon their

Question # 5

Which one is not present in A.C. generator.

Question # 6

DC generator by william Sturgeon in:

Question # 7

The motional emf developed in a conduction depends upon.

Question # 8

The  Lenz's law is also statement of:

Question # 9

A simple device that prevents the direction of current from changing is called.

Question # 10

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

Question # 11

Electric current produces magnetic field, was suggested by.

Question # 12

The motional emf depends upon the

Question # 13

If speed of rotation of a generator is doubled the output voltage will be.

Question # 14

the core of transformer is laminated so reduce.

Question # 15

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

Question # 16

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

Question # 17

The Si unit of Mutual inductance is:

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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 north pole of a magnet is brought near a metallic ring. The direction of induced current in the ring will be:
A. Antoclockwise
B. Clockwise
C. First Clockwise and then Antoclockwise
D. First anticlockwise and then Clockwise
2
Question Image
3 Eddy current is one cause energy loss in
A. A.C. generator
B. Transformer
C. D.C. motor
D. D.C. generator
4 The unit of induced emf is
A. Ampere
B. Volt
C. Joule/coulomb
D. Both (b) and (c)
5 The  Lenz's law is also statement of:
A. Law of conservation of mass
B. Law of conservation of charge
C. Law of conservation of energy
D. Law of conservation of momentum
6 A real transformer does not change.
A. Voltage level
B. Current level
C. Power level
D. Frequency
7 Which of the following quantities remain constant in step up transformer?
A. Current
B. Voltage
C. Power
D. Heat
8 If magnetic field is doubled then magnetic energy density becomes.
A. Four times
B. Two times
C. Three times
D. Six times
9 When back emf in motor is zero, it draws.
A. Zero current
B. Minimum current
C. Maximum current
D. Steady current
10 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

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