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

00:00
Question # 1

The power factor of RL series circuit is.

Question # 2

Electron vibrating 94,000 times each second will produce radio waves of frequency.

Question # 3

In chopke coil the resistance XL an resistance R are:

Question # 4

The slope of q-t curve at any instant of time gives.

Question # 5

High frequency radio wave is called as

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.

Question # 11

The reactance of inductor depends upon

Question # 12

The unit of impedance is

Question # 13

Power dissipation in A.C circuit is expressed as:

Question # 14

The value of capacitive reactance is given by

Question # 15

The expression P = VI hold only when current and voltage are.

Question # 16

In AC system we generate sine wave form because:

Question # 17

In case of A.C. through resistor V and I are

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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 In three phase A.C supply coils are inclined at an angle of.
A. 0o
B. 90o
C. 120o
D. 80o
3 An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately
A. 50 Hz
B. 100 Hz
C. 80 Hz
D. 120 Hz
4 A resistance frequency the impedance of RLC parallel circuit is.
A. Zero
B. Infinite
C. Maximum
D. Minimum
5 When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.
A. 100 Ohm
B. 10 Ohm
C. 1000 Ohm
D. 1 Ohm
6 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
7 Main reason for world wide use of A.C. is
A. It is cheaper
B. Transmitted
C. Botha a and b
D. Reaches in short time
8 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
9 The peak value of alternating current is 5√2 A. The mean square value of current will be:
A. 5A
B. 2.5A
C. 5√2A
D. 52
10 Power dissipated in a pure inductor is.
A. Large
B. Small
C. Infinite
D. Zero

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