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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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 15 Online MCQ's Test"

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Physics ICS Part 2 Chapter 15 Online MCQ's Test

00:00
Question # 1

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

Question # 2

One henry is equal to

Question # 3

SI unit of hennery which is.

Question # 4

The movement of conductor in magnetic field produces electrical current was discovered in:

Question # 5

The Lenz's law fulfils.

Question # 6

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

Question # 7

A metal rod of 1 m is moving at a speed of 1 ms-1 in a direction making an angle 30 o with 0.5 T magnetic field . The emf produced is.

Question # 8

Transformer is used to change

Question # 9

DC generator by william Sturgeon in:

Question # 10

The application of mutual induction is a.

Question # 11

In A.C. inductor behaves as

Question # 12

Energy density of an inductor is:

Question # 13

When motor is just started, back emf is almost.

Question # 14

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

Question # 15

Lenz's law was given by Heinrich lenz in:

Question # 16

If force in the direction of velocity of conductor,  then induced current is directed,

Question # 17

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.

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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
Question Image
2 A real transformer does not change.
A. Voltage level
B. Current level
C. Power level
D. Frequency
3 The motional emf is give by
A. qvB
B. IBL
C. eBL
D. vBL
4 Energy stored in an inductor is:
A. 1/2L2I
B. 1/2L2/I
C. 1/2LI2
D. 1/2LI
5 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
6 When motor is just started, back emf is almost.
A. Maximum
B. Zero
C. Minimum
D. Infinite
7 The Lenz's law fulfils.
A. Law of conservation of energy
B. Law of conservation of charge
C. Law of conservation of momentum
D. Kirchhoff's law
8 Mutual induction has a practical role in the performance of the.
A. Radio choke
B. Transformers
C. A.C. Generator
D. D.C. Generator
9 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.
A. 50
B. 100
C. 150
D. 200
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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