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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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

An in cudutor may store energy in

Question # 2

In three phase voltage across any two lines is about.

Question # 3

The circuit which compares the two voltages is.

Question # 4

If Io is the peak value of current, then its root mean square value is given by

Question # 5

In RLC circuit the energy is dissipated in

Question # 6

The condition of resonance is:

Question # 7

In AC system we generate sine wave form because:

Question # 8

In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.

Question # 9

For electromagnetic waves, Maxwell generalized

Question # 10

In LR circiut which one of the following statements is correct?

Question # 11

The sum of positive and negative peak value called.

Question # 12

The unit of impedance is

Question # 13

The AC system is preferred to DC system because:

Question # 14

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

Question # 15

The natural frequency of L.C circuit is equal to

Question # 16

At high frequency, the current through a capacitor is

Question # 17

The circuit in which current and voltage are in phase, the power factor is:

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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 wave form of alternating voltage is a
A. Cotangent curve
B. Cosine curve
C. Sine curve
D. Tangent curve
2 100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.
A. 30.8 Ohm
B. 31.8 Ohm
C. 34.8 Ohm
D. 40 Ohm
3 In Pakistan the frequency of A.C. supply is.
A. 50 Hz
B. 60 Hz
C. 45 Hz
D. 70 Hz
4 In A.C circuit of inductor which one is true
A. Voltage leads current by phase angle π/2
B. Voltage lags current by π/2
C. Current leads voltage by π/2
D. Both remain in phase
5 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
6 In RLC circuit the energy is dissipated in
A. R only
B. R and L
C. R and C
D. L and C
7 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
8 Radio frequency choke is
A. Iron cored
B. Air Cored
C. Air as well as iron cored
D. None of these
9 The reactance is the ratio of
A. Vrms/Irms
B. Vrms x Irms
C. Irms/Vrms
D. Vmax x Vrms
10 Vrms =
A. 0.7V
B.
0.07V
C. 0.007V
D. 0.75V

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