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

split rings are used in

Question # 2

A real transformer does not change.

Question # 3

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

Question # 4

The current induced can be increased by:

Question # 5

When motor is just started, back emf is almost.

Question # 6

Energy stored in inductor is.

Question # 7

Self inductance of a long solenoid is given by

Question # 8

In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is.

Question # 9

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

Question # 10

The induction can be increased by winding the wire around a core made of.

Question # 11

The winding of the electromagnet in motor are usually called.

Question # 12

A.C. Generator based upon the

Question # 13

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 # 14

SI unit of hennery which is.

Question # 15

A.C is converted into D.C by

Question # 16

The rod of unit length is moving at 30 o through a magnetic field of 1 T. If the velocity of rod is 1 m/s, then induced emf in the rod will be given by

Question # 17

The illustration of the phenomenon of mutual induction is in the device of

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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 A current generator device converts:
A. Mechanical energy into chemical energy
B. Chemical energy into electrical energy
C. Mechanical energy into electrical energy
D. Both b and c
2 The induction can be increased by winding the wire around a core made of.
A. Copper
B. Silicon
C. Iron
D. Aluminum
3 Commutator was invented by:
A. William bills
B. William Gates
C. William tells
D. William Sturgeon
4 One henry is equal to
A. 1 ohm x 1 sec
B. 1 ohm x 1 hertz
C. 1 ohm x 1 metre
D. All of above
5 When back emf in motor is zero, it draws.
A. Zero current
B. Minimum current
C. Maximum current
D. Steady current
6 Self induction does not depend on
A. Number of turns of the coil
B. Area of cross section of the core
C. Nature of material of the core
D. Current through inductor
7 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
8 Step up transfer has a transformation ratio of 3:2. What is the voltage in secondary , If voltage in primary is 30 V?
A. 45 V
B. 15 V
C. 90 V
D. 300 V
9 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
10 Commentator was invented by
A. Henry
B. Ousted
C. Maxwell
D. William sturgeon

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