Second Year Physics Chapter 16 Online MCQ Test for 2nd Year Physics Chapter 16 Alternating Current Preparation

FSC Part 2 Physics
Chapter 16 Test

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Physics FSC Part 2 Chapter 16 Online MCQ's Test

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Question # 1

In pure capacitor A.C. circuit, the current I and charge q are.

Question # 2

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

Question # 3

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

Question # 4

The main reason for world wide use of A.C is because:

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

The wave form of alternating voltage is a

Question # 9

Power dissipated in a pure inductor is.

Question # 10

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

Question # 11

High frequency radio wave is called as

Question # 12

If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.

Question # 13

The phase angle of a series RLC circult at resonant frequency is

Question # 14

In A.C circuit of inductor which one is true

Question # 15

The flow of D.C current is opposed by

Question # 16

In frequency modulation, the amplitude of carrier waves is

Question # 17

Choke consumes extremely small

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FSC 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 internal resistance of a capacitor is called:
A. Impedance
B. Resistance
C. Reactance
D. Conductance
2 The effective value of any sinusoidal alternating current or voltage is
D. None of the above
3 In three phase voltage across any two lines is about.
A. 220 V
B. 230 V
C. 400 V
D. 430 V
4 The reactance of inductor depends upon
A. L
D. All of the above
5 Power dissipation is a pure inductive or in a pure capacitance circuit is:
A. 106
B. 0
C. 10
D. Maximum
6 An electromagnetic wave goes from air to glass which of the following does not change?
A. Radio waves
B. X-rays
C. Ultra violet radiation
D. Ultra sond waves
7 Radio frequency choke is
A. Iron cored
B. Air Cored
C. Air as well as iron cored
D. None of these
8 The circuit in which current and voltage are in phase, the power factor is:
A. Zero
B. 1
C. -1
D. 2
9 Unit of impedance is:
A. Ohm
B. Ohm-1
C. no unit
D. Ohm m-1
10 The main reason for world wide use of A.C is because:
A. It is very high power 
B. It can be transmitted over long distance
C. It is cheaper to use
D. ALl of above

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