2nd Year Physics Chapter 16 Online MCQ Test for 12th Class Physics Chapter 16 (Alternating Current)

ICS Part 2 Physics
Chapter 16 Test

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ICS Part 2 Physics Chapter Wise Test
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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 16 Online MCQ's Test"

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Physics ICS Part 2 Chapter 16 Online MCQ's Test

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Question # 1

The unit of impedance is.

Question # 2

Main reason for world wide use of A.C. is

Question # 3

The Basic circuit element in a D.C. circuits which controls the current and voltage is

Question # 4

In three phase A.C supply coils are inclined at an angle of.

Question # 5

Choke consumes extremely small

Question # 6

Average value of current and voltage over a complete cycle is.

Question # 7

Resistance of choke is

Question # 8

X1is low for low frequency Fy but Xc is.

Question # 9

The natural frequency of L.C circuit is equal to

Question # 10

In Series resonance circuit the impedance of circuit art resonance frequency, is

Question # 11

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

Question # 12

At resonance, the behavior of R-L-C series circuit is.

Question # 13

In frequency modulation, the amplitude of carrier waves is

Question # 14

At high frequency the value of reactance of capacitor will be.

Question # 15

The velocity of an oscillating charge as it moves to and fro along a wire is.

Question # 16

An alternating quantity (voltage or current) is completely known if we know its:

Question # 17

The sum of positive and negative peak value called.

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ICS 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 reactance is the ratio of
A. Vrms/Irms
B. Vrms x Irms
C. Irms/Vrms
D. Vmax x Vrms
2 In three phase voltage across any two lines is about.
A. 220 V
B. 230 V
C. 400 V
D. 430 V
3 The combined effect of resistance and reactance in circuit is called:
A. Impedance
B. Inductance
C. Capacitance
D. None of above
4 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
5 The peak value of A.C source is 20 A, then its rms value will be.
A. 14.1 A
B. 10 A
C. 20 A
D. 28.2 A
6 Radio frequency choke is
A. Iron cored
B. Air Cored
C. Air as well as iron cored
D. None of these
7 The highest value reached by the voltage or current in one cycle is called.
A. Peak ot peak value
B. Peak value
C. Instantaneous value
D. Root mean square value
8 In RLC circuit the energy is dissipated in
A. R only
B. R and L
C. R and C
D. L and C
9 A capacitor is perfectly insulator for:
A. Direct current
B. Alternating current
C. Direct as well as alternating current
D. None of these
10 The AC system is preferred to DC system because:
A. AC voltage can be easily changed in magnitude
B. DC motor angular velocity is affected badly
C. High voltage AC transmission is less efficient
D. Domestic appliance require AC voltage for their operation

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