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

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

Question # 2

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

Question # 3

The application of mutual induction is a.

Question # 4

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

Question # 5

The magnitude of motional emf is given by

Question # 6

Unit of self inductance is

Question # 7

The Si unit of Mutual inductance is:

Question # 8

The illustration of the phenomenon of mutual induction is in the device of

Question # 9

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

Question # 10

A simple device that prevents the direction of current from changing is called.

Question # 11

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

Question # 12

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

Question # 13

In self induction A coil is connected in__________ with battery and a rheostat.

Question # 14

With the speed of motor, magnitude of back emf

Question # 15

When motor is just started, back emf is almost.

Question # 16

Self induction does not depend on

Question # 17

The self induction emf is some times called.

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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 The movement of conductor in magnetic field produces electrical current was discovered in:
A. 1931
B. 1731
C. 1842
D. 1831
3 Mutual induction play role in.
A. Generator
B. D.C. motor
C. Galvanometer
D. Transformer
4 Commutator was invented in
A. 1834
B. 1820
C. 1840
D. 1835
5 EMF is induced due to change in
A. Charge
B. Current
C. Magnetic flux
D. Electric field
6 The winding of the electromagnet in motor are usually called.
A. Magnetic coils
B. Field coils
C. Electric coils
D. electric o electric coils
7 1 Henry =
A. VSA-1
B. VS-1A-1
C. V-1SA
D. VSA-2
8 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
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 In D.C. generator, split rings act as.
A. Capacitor
B. Commutator
C. Resistor
D. Inductor

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