Second Year Physics Chapter 16 Online MCQ Test for 2nd Year Physics Chapter 16 Alternating Current Preparation

FSC Part 2 Physics
Chapter 16 Test

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Physics FSC Part 2 Chapter 16 Online MCQ's Test

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Question # 1

In pure capacitor A.C. circuit, the current I and charge q are.

Question # 2

The peak to peak value of alternating voltage is

Question # 3

In three phase A.C. generator the phase difference between each pair of coil is.

Question # 4

The highest value reached by the voltage or current in one cycle is called.

Question # 5

The phase difference between current and voltage in an inductive circuit is.

Question # 6

A capacitor is perfectly insulator for:

Question # 7

Phase difference between V and I of an A.C through resistor is.

Question # 8

In modulation, low frequency signal is known as

Question # 9

In RLC circuit the energy is dissipated in

Question # 10

In an LRC circiut, the capacitance is made one-fourth, when an resonance . Then what should be change in inductance, so that the circuit remain in resonance?

Question # 11

In a pure inductive A.C. circuit the current.

Question # 12

Xc =

Question # 13

The reactance of inductor depends upon

Question # 14

The peak value of alternating current is 5√2 A. The mean square value of current will be:

Question # 15

In Pakistan the frequency of A.C. supply is.

Question # 16

The highest value reached by the voltage or current is one cycle is called:

Question # 17

The A.M. transmission frequencies range from

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FSC Part 2 Physics Chapter 16 Online Test MCQ's

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The main reason for world wide use of A.C is because:
A. It is very high power 
B. It can be transmitted over long distance
C. It is cheaper to use
D. ALl of above
2 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
3 In AC system we generate sine wave form because:
A. It san be easily draw
B. It produces least disturbance in electrical circuits
C. It is nature standard
D. Other waves cannot be produced easily
4 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
5 Vrms =
A. 0.7V
B.
0.07V
C. 0.007V
D. 0.75V
6 If Vrms be the root mean square value of emf then its peak to peak value is given by
7 A capacitor is perfectly insulator for:
A. Direct current
B. Alternating current
C. Direct as well as alternating current
D. None of these
8 The device which allows only the continuous flow of AC through it is.
A. Inductor
B. Battery
C. Thermistor
D. Capacitor
9 X1is low for low frequency Fy but Xc is.
A. Zero
B. Low
C. High
D. Same is H
10 Electro magnetic waves emitted from radio antenna are.
A. Stationary
B. Longitudinal
C. Transvers
D. Both a and b

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