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 rod of unit length is moving at 30 o through a magnetic field of 1 T. If the velocity of rod is 1 m/s, then induced emf in the rod will be given by

Question # 2

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

Question # 3

A real transformer does not change.

Question # 4

A.C is converted into D.C by

Question # 5

Energy stored in an inductor is:

Question # 6

If the north pole of a magnet moves away from a metallic ring

Question # 7

The magnitude of motional emf is given by

Question # 8

Electromagnetic induction obeys law of conservation

Question # 9

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

Question # 10

The Lenz's law fulfils.

Question # 11

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

Question # 12

A current generator device converts:

Question # 13

Electromagnetic induction is exactly according to law of:

Question # 14

Lenz's law deals with

Question # 15

B2/2p is the expression of.

Question # 16

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

Question # 17

Eddy current is produced when:

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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 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
2 In D.C. generator, split rings act as.
A. Capacitor
B. Commutator
C. Resistor
D. Inductor
3 The unit of induced emf is
A. Ampere
B. Volt
C. Joule/coulomb
D. Both (b) and (c)
4 The induced emf in a coil is proportional to:
A. Magnetic flux through the coil
B. Rate of change of Magnetic flux through the coil
C. Area of the coil
D. Product of magnetic flux flux and area of the coil
5 Energy stored in inductor is.
A. 1/2 L I2
B. 1/2 LI
C. 1/2 L2I
D. 1/2 L2I2
6 The magnitude of motional emf is given by
7 The rod of unit length is moving at 30 o through a magnetic field of 1 T. If the velocity of rod is 1 m/s, then induced emf in the rod will be given by
A. I V
B. 0.25 V
C. 0.5 V
D. 0.6 V
8 Electromagnetic induction is exactly according to law of:
A. Momentum
B. Charge
C. Energy
D. Mass
9
Question Image
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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