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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  • Total Questions17

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Physics ICS Part 2 Chapter 16 Online MCQ's Test

00:00
Question # 1

In AC system we generate sine wave form because:

Question # 2

Power dissipation in A.C circuit is expressed as:

Question # 3

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

Question # 4

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

Question # 5

In A.C circuit of inductor which one is true

Question # 6

The device which allows only the flow of D.C. is.

Question # 7

In frequency modulation which factor changed.

Question # 8

Power dissipated in a pure inductor is.

Question # 9

The AC system is preferred to DC system because:

Question # 10

100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.

Question # 11

The combined effect of resistance and reactance in circuit is called:

Question # 12

The mean value of A.C. in a cycle is.

Question # 13

In frequency modulation, the amplitude of carrier waves is

Question # 14

The wave form of alternating voltage is a

Question # 15

The resonance frequency is given by:

Question # 16

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 # 17

In three phase voltage across any two lines is about.

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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 Phase difference between V and I of an A.C through resistor is.
A. Zero Degree
B. 90 o
C. 80o
D. 120o
2 The reactance of inductor depends upon
A. L
D. All of the above
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 In Pakistan the frequency of A.C. supply is.
A. 50 Hz
B. 60 Hz
C. 45 Hz
D. 70 Hz
5 The reactance is the ratio of
A. Vrms/Irms
B. Vrms x Irms
C. Irms/Vrms
D. Vmax x Vrms
6 In frequency modulation which factor changed.
A. Amplitude of charge carriers
B. Frequency of charge carriers
C. Amplitude of signal
D. Frequency of signal
7 In case of A.C. through resistor V and I are
A. At 0 o with each other
B. At 180 o with each other
C. At 90 o with each other
D. At 270 o with each other
8 The highest value reached by the voltage or current is one cycle is called:
A. Peak to peak value
B. Peak value
C.
Instantaneous value
D. Root mean square value
9 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
10 The wave form of alternating voltage is a
A. Cotangent curve
B. Cosine curve
C. Sine curve
D. Tangent curve

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