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

When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.

Question # 2

An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately

Question # 3

In frequency modulation which factor changed.

Question # 4

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

Question # 5

In AC system we generate sine wave form because:

Question # 6

Power dissipation is a pure inductive or in a pure capacitance circuit is:

Question # 7

In modulation, low frequency signal is known as

Question # 8

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

Question # 9

Resistance of choke is

Question # 10

The main use of A.C is

Question # 11

High frequency radio wave is called as

Question # 12

An electromagnetic wave goes from air to glass which of the following does not change?

Question # 13

An in cudutor may store energy in

Question # 14

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 # 15

In purely resistive A.C circuit, instantaneous value of voltage and current:

Question # 16

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

Question # 17

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

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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 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
2 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?
A. 4 times
B. 1/4 times
C. 8 times
D. 2 times
3 In LR circiut which one of the following statements is correct?
A. L and R opposes each other
B. R value increases with frequency
C. The inductive reactance increases with frequency
D. The inductive reactance decreases with frequency
4 During each cycle A.C. voltage reaches a peak value.
A. Once
B. Twice
C. Thrice
D. Four time
5 In three phase A.C supply coils are inclined at an angle of.
A. 0o
B. 90o
C. 120o
D. 80o
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 metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit
8 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
9 Power dissipated in a pure inductor is.
A. Large
B. Small
C. Infinite
D. Zero
10 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

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