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

00:00
Question # 1

Michael Faraday and Joseph Henry belongs to

Question # 2

The motional emf developed in a conduction depends upon.

Question # 3

A current generator device converts:

Question # 4

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

Question # 5

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

Question # 6

The mutual inductance between two coils depends upon their

Question # 7

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

Question # 8

The motional emf is give by

Question # 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?

Question # 10

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

Question # 11

Electromagnetic induction obeys law of conservation

Question # 12

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

Question # 13

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

Question # 14

The Si unit of Mutual inductance is:

Question # 15

Efficiency of transformer does not affected by

Question # 16

Step up transformer is used.

Question # 17

When a conductor moves across a magnetic field an emf is set up this emf is 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 The movement of conductor in magnetic field produces electrical current was discovered in:
A. 1931
B. 1731
C. 1842
D. 1831
2 The direction of induced current is always so as to oppose the change which causes the current, this is the statement of
A. Lenz's law
B. Faraday's law
C. Ampere's law
D. Coulomb's law
3 The jerks in D.C. motor are created by the use of.
A. Armature
B. Commutators
C. Split rings
D. Source of emf
4 The induction can be increased by winding the wire around a core made of.
A. Copper
B. Silicon
C. Iron
D. Aluminum
5 A current generator device converts:
A. Mechanical energy into chemical energy
B. Chemical energy into electrical energy
C. Mechanical energy into electrical energy
D. Both b and c
6 The mutual inductance between two coils depends upon their
A. Size
B. Core material
C. Size, core material and separation
D. Separation
7 For step down transformer
A. Ns>Np
B. Np > Ns
C. Ns = Np
D. Ns > > > Np
8 If we make magnetic field stronger the value of induced current is.
A. Decreased
B. Increased
C. Vanishes
D. Remain constant
9 In D.C. generator, split rings act as.
A. Capacitor
B. Commutator
C. Resistor
D. Inductor
10 If the coil is wound on iron core, the flux through it.
A. Decreases
B. Becomes zero
C. Increases
D. Remains constant

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