Second Year Physics Chapter 15 Online MCQ Test for 2nd Year Physics Chapter 15 Electromagnetic Induction Preparation

FSC Part 2 Physics
Chapter 15 Test

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Physics FSC Part 2 Chapter 15 Online MCQ's Test

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Question # 1

Self inductance of a long solenoid is given by

Question # 2

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

Question # 3

Energy density of an inductor is:

Question # 4

B2/2p is the expression of.

Question # 5

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

Question # 6

If we make magnetic field stronger the value of induced current is.

Question # 7

The jerks in D.C. motor are created by the use of.

Question # 8

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

Question # 9

For step down transformer

Question # 10

When a motor is over loaded then the magnitude of back emf.

Question # 11

The working principle of transformer is.

Question # 12

The mutual inductance of the coils depends upon.

Question # 13

Eddy current is one cause energy loss in

Question # 14

split rings are used in

Question # 15

A current generator device converts:

Question # 16

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

Question # 17

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

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FSC 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 Electromagnetic induction is exactly according to law of:
A. Momentum
B. Charge
C. Energy
D. Mass
3 Which of the following quantities remain constant in step up transformer?
A. Current
B. Voltage
C. Power
D. Heat
4 The negative sign with induced emf in Faraday's law is in accordance with
A. Lenz's law
B. Amperes law
C. Boyle's law
D. Gauss law
5 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?
A. 2 H
B. 3 H
C. 1/2 H
D. Zero
6 In A.C. inductor behaves as
A. Capacitor
B. Resistor
C. Commutator
D. Transistor
7 Energy stored in an inductor is:
A. 1/2L2I
B. 1/2L2/I
C. 1/2LI2
D. 1/2LI
8 If we make magnetic field stronger the value of induced current is.
A. Decreased
B. Increased
C. Vanishes
D. Remain constant
9 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
10 Mutual induction has a practical role in the performance of the.
A. Radio choke
B. Transformers
C. A.C. Generator
D. D.C. Generator

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