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

00:00
Question # 1

Mutual induction has a practical role in the performance of the.

Question # 2

The current induced can be increased by:

Question # 3

Induced emf in A.C. generator can be increased by

Question # 4

For step down transformer

Question # 5

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 # 6

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

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

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

Question # 9

EMF is induced due to change in

Question # 10

The application of mutual induction is a.

Question # 11

Commentator was invented by

Question # 12

The Lenz's law fulfils.

Question # 13

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

Question # 14

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

Question # 15

The  Lenz's law is also statement of:

Question # 16

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

Question # 17

If a step up transformer were 100% efficient the primary and secondary winging's would have the same.

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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 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
2 The self induction emf is some times called.
A. Motional emf
B. Constant emf
C. Back emf
D. Variable emf
3 The motional emf depends upon the
A. Length of conductor
B. Speed of conductor
C. Strength of magnet
D. All of these
4 A 50 mH coil carries a current of 2.0 a , then energy stored in tis magnetic field is.
A. 0.1 J
B. 10 J
C. 100 J
D. 1000 J
5 One henry is equal to
A. 1 ohm x 1 sec
B. 1 ohm x 1 hertz
C. 1 ohm x 1 metre
D. All of above
6 Lenz's law presented in
A. 1834
B. 1934
C. 1826
D. 1836
7 The illustration of the phenomenon of mutual induction is in the device of
A. Transformer
B. Inductor
C. A.C. Generator
D. Ammeter
8 The device in the circuit that consume electrical energy are known as.
A. Dissipaters
B. Generator
C. Load
D. Motors
9 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
10 A simple device that prevents the direction of current from changing is called.
A. Commutator
B. Rotor
C. Armature
D. Detector

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