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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  • Total Questions17

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Physics ICS Part 2 Chapter 15 Online MCQ's Test

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Question # 1

If the north pole of a magnet moves away from a metallic ring

Question # 2

Electromagnetic induction obeys law of conservation

Question # 3

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

Question # 4

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

Question # 5

Lenz's law is a consequence of the law of conservation of

Question # 6

Commutator was invented in

Question # 7

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

Question # 8

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

Question # 9

The application of mutual induction is a.

Question # 10

The motional emf depends upon the

Question # 11

The Si unit of Mutual inductance is:

Question # 12

In a coil current change from 2 to 4 A in .05 s . If the average induced emf is 8 V then coefficient of self-inductance is:

Question # 13

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

Question # 14

Mutual induction play role in.

Question # 15

EMF is induced due to change in

Question # 16

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 # 17

Which of the following converts electrical energy into mechanical energy.

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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 Electric current produces magnetic field, was suggested by.
A. Faraday
B. Oersted
C. Henry
D. Lenz
2 Electromagnetic induction is exactly according to law of:
A. Momentum
B. Charge
C. Energy
D. Mass
3 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
4 The device in which induced emf is statically induced emf is:
A. Transforms
B. AC generator
C. Alevator
D. Dynamo
5 The induction can be increased by winding the wire around a core made of.
A. Copper
B. Silicon
C. Iron
D. Aluminum
6 A real transformer does not change.
A. Voltage level
B. Current level
C. Power level
D. Frequency
7 The motional emf developed in a conduction depends upon.
A. Length
B. Orientation
C. Magnetic field
D. All of the above
8 In D.C. generator, split rings act as.
A. Capacitor
B. Commutator
C. Resistor
D. Inductor
9 The magnitude of back emf:
A. Increases with sped of motor
B. Decreases with speed of motor
C. Remains same 
D. None of above
10 Efficiency of transformer does not affected by
A. Input voltage
B. Core of transformer
C. Insulation between sheet
D. Resistance of coils

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