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

Transformer is used to change

Question # 2

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 # 3

Michael Faraday and Joseph Henry belongs to

Question # 4

Energy density in an inductor is.

Question # 5

The device in the circuit that consume electrical energy are known as.

Question # 6

EMF is induced due to change in

Question # 7

The winding of the electromagnet in motor are usually called.

Question # 8

The only difference between the construction of D.C and A.C is.

Question # 9

Output of D.C. motor is

Question # 10

Efficiency of transformer does not affected by

Question # 11

The motional emf developed in a conduction depends upon.

Question # 12

DC generator by william Sturgeon in:

Question # 13

The device in which induced emf is statically induced emf is:

Question # 14

If magnetic field is doubled then magnetic energy density becomes.

Question # 15

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

Question # 16

Electromagnetic induction obeys law of conservation

Question # 17

The  Lenz's law is also statement of:

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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 Energy density in an inductor is.
A. Directly proportional to magnetic field
B. Directly proportional to square of magnetic field
C. Inversely proportional to magnetic field
D. Inversely proportional to square of magnetic field
2 A.C. Generator based upon the
A. Lenz's law
B. Maxwell's relation
C. Faradays law of electromagnet induction
D. Mutual induction
3 Michael Faraday and Joseph Henry belongs to
A. England and USA
B. France and USA
C. China and USA
D. None of these
4 The illustration of the phenomenon of mutual induction is in the device of
A. Transformer
B. Inductor
C. A.C. Generator
D. Ammeter
5 In self induction A coil is connected in__________ with battery and a rheostat.
A. Parallel
B. Series
C. Both A and B
D. None of above
6 When a conductor moves across a magnetic field an emf is set up this emf is called.
A. Variable emf
B. Constant emf
C. Back emf
D. Induced emf
7 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
8 If magnetic field is doubled then magnetic energy density becomes.
A. Four times
B. Two times
C. Three times
D. Six times
9 What is the co-efficient of mutual inductance, when the magnetic flux changes by 2 x 10-2 Wb, and change in current is 0.01 A?
A. 2 H
B. 3 H
C. 1/2 H
D. Zero
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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