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

Which of the following converts electrical energy into mechanical energy.

Question # 2

Self inductance of a long solenoid is given by

Question # 3

A 50 mH coil carries a current of 2.0 a , then energy stored in tis magnetic field is.

Question # 4

In D.C. generator, split rings act as.

Question # 5

A current generator device converts:

Question # 6

In case of inductor , energy is stored in the

Question # 7

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

Question # 8

A.C is converted into D.C by

Question # 9

The north pole of a magnet is brought near a metallic ring. The direction of induced current in the ring will be:

Question # 10

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 # 11

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

Question # 12

A real transformer does not change.

Question # 13

Step up transfer has a transformation ratio of 3:2. What is the voltage in secondary , If voltage in primary is 30 V?

Question # 14

The device in the circuit that consume electrical energy are known as.

Question # 15

When the back emf is zero, its draws.

Question # 16

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

Question # 17

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

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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 B2/2p is the expression of.
A. Lenz's law
B. Magnetic energy
C. Magnetic energy density
D. Back emf
2 In case of inductor , energy is stored in the
A. Electric field
B. Magnetic field
C. Potential field
D. Gravitational field
3 The current induced can be increased by:
A. Using a stronger magnetic field
B. Moving the loop faster
C. Replacing the loop bay coi of many turns
D. All of above
4 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
5 If we make magnetic field stronger the value of induced current is.
A. Decreased
B. Increased
C. Vanishes
D. Remain constant
6 For inducing emf in a coil the basic requirement is that:
A. Flux should link the coil
B. Change in flux should link the coil
C. Coil should form a closed loop
D. Both (b) and (c) are true
7 Which of the following converts electrical energy into mechanical energy.
A. Transformer
B. A.C. generator
C. D.C. generator
D. D.C. motor
8 When the back emf in a current is zero, it draws
A. Zero current
B. Maximum current
C. Minimum current
D. Steady average current
9 The unit of induced emf is
A. Ampere
B. Volt
C. Joule/coulomb
D. Both (b) and (c)
10
Question Image
A. Lenz's law
B. Faraday's law
C. Ampere's law
D. None of these

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