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

split rings are used in

Question # 2

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

Question # 3

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

Question # 4

The application of mutual induction is a.

Question # 5

Lenz's law deals with

Question # 6

EMF is induced due to change in

Question # 7

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

Question # 8

The working principle of transformer is.

Question # 9

With the speed of motor, magnitude of back emf

Question # 10

The motional emf is give by

Question # 11

One henry is equal to

Question # 12

B2/2p is the expression of.

Question # 13

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

Question # 14

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

Question # 15

Efficiency of transformer does not affected by

Question # 16

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 # 17

The negative sign with induced emf in Faraday's law is in accordance with

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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 The current induced can be increased by:
A. Using a stronger magnetic field
B. Moving the loop faster
C. Replacing the loop bay coi of many turns
D. All of above
3 B2/2p is the expression of.
A. Lenz's law
B. Magnetic energy
C. Magnetic energy density
D. Back emf
4 Michael Faraday and Joseph Henry belongs to
A. England and USA
B. France and USA
C. China and USA
D. None of these
5 Lenz's law is a consequence of the law of conservation of
A. Charge
B. Momentum
C. Energy
D. Angular momentum
6 If 10 A current passes through 100 mH inductor, then energy stored is.
A. 100 J
B. 5 J
C. 20 J
D. Zero
7 Induced emf in A.C. generator can be increased by
A. Decreasing area of coil
B. Decreasing magnetic field
C. Increasing area of coil
D. Slowing down speed of coil
8 Output of D.C. motor is
A. A.C. energy
B. Mechanical energy
C. Chemical energy
D. D.C. energy
9 Commutator was invented by:
A. William bills
B. William Gates
C. William tells
D. William Sturgeon
10 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

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