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

For inducing emf in a coil the basic requirement is that:

Question # 2

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

Question # 3

When a conductor moves across a magnetic field an emf is set up this emf is called.

Question # 4

The  Lenz's law is also statement of:

Question # 5

Eddy current is one cause energy loss in

Question # 6

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

Question # 7

The current induced can be increased by:

Question # 8

When the back emf is zero, its draws.

Question # 9

The mutual inductance of the coils depends upon.

Question # 10

For step down transformer

Question # 11

Which of the following converts electrical energy into mechanical energy.

Question # 12

Eddy current is produced when:

Question # 13

Self inductance of a long solenoid is given by

Question # 14

B2/2p is the expression of.

Question # 15

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

Question # 16

Electromagnetic induction is exactly according to law of:

Question # 17

Energy density in an inductor is.

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15th Chapter

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 The motional emf depends upon the
A. Length of conductor
B. Speed of conductor
C. Strength of magnet
D. All of these
2 The device in which induced emf is statically induced emf is:
A. Transforms
B. AC generator
C. Alevator
D. Dynamo
3 If magnetic field is doubled then magnetic energy density becomes.
A. Four times
B. Two times
C. Three times
D. Six times
4 Output of D.C. motor is
A. A.C. energy
B. Mechanical energy
C. Chemical energy
D. D.C. energy
5 The mutual inductance of the coils depends upon.
A. Stiffness of the coils
B. Density of coils
C. Material of coils
D. Geometry of the coils
6 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
7 Electromagnetic induction obeys law of conservation
A. Charge
B. Energy
C. Momentum
D. Mass
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 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
10 DC generator by william Sturgeon in:
A. 1894
B. 1961
C. 1834
D. 1961

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