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

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Question # 1

The mutual inductance between two coils depends upon their

Question # 2

Energy stored in inductor is.

Question # 3

Efficiency of transformer does not affected by

Question # 4

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

Question # 5

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 # 6

Output of D.C. motor is

Question # 7

Which of the following converts electrical energy into mechanical energy.

Question # 8

The winding of the electromagnet in motor are usually called.

Question # 9

The Direction of induced current is always so as to oppose the change which causes the current, is:

Question # 10

In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is.

Question # 11

The Lenz's law fulfils.

Question # 12

B2/2p is the expression of.

Question # 13

Which one is not present in A.C. generator.

Question # 14

Commentator was invented by

Question # 15

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

Question # 16

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

Question # 17

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

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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 A simple device that prevents the direction of current from changing is called.
A. Commutator
B. Rotor
C. Armature
D. Detector
2 Lenz's law was given by Heinrich lenz in:
A. 1894
B. 1904
C. 1854
D. 1834
3 In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is.
A. NwAB
B. 2pi f
C. Maximum
D. Zero
4 If magnetic field is doubled then magnetic energy density becomes.
A. Four times
B. Two times
C. Three times
D. Six times
5 The  Lenz's law is also statement of:
A. Law of conservation of mass
B. Law of conservation of charge
C. Law of conservation of energy
D. Law of conservation of momentum
6 The unit of induced emf is
A. Ampere
B. Volt
C. Joule/coulomb
D. Both (b) and (c)
7 In A.C. inductor behaves as
A. Capacitor
B. Resistor
C. Commutator
D. Transistor
8
Question Image
9 The device in which induced emf is statically induced emf is:
A. Transforms
B. AC generator
C. Alevator
D. Dynamo
10 If 10 A current passes through 100 mH inductor, then energy stored is.
A. 100 J
B. 5 J
C. 20 J
D. Zero

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