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

Resistance of choke is

Question # 2

Unit of impedance is:

Question # 3

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

Question # 4

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

Question # 5

In frequency modulation, the amplitude of carrier waves is

Question # 6

The basic circuit element in A.C. circuit which controls current.

Question # 7

High frequency radio wave is called as

Question # 8

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

Question # 9

For electromagnetic waves, Maxwell generalized

Question # 10

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

Question # 11

At high frequency, the current through a capacitor is

Question # 12

The combined effect of resistance and reactance is knows as.

Question # 13

SI unit of reactance is.

Question # 14

The power factor of RL series circuit is.

Question # 15

The AC system is preferred to DC system because:

Question # 16

The device which allows only the continuous flow of AC through it is.

Question # 17

An alternating quantity (voltage or current) is completely known if we know its:

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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 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
2 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
3 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
4 Impedance is denoted by:
A. A 
B. Z
C. P
D. Q
5 The expression P = VI hold only when current and voltage are.
A. In phase
B. Out of phase
C. At right angle to each other
D. At angle of 120 o
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 A resistance frequency the impedance of RLC parallel circuit is.
A. Zero
B. Infinite
C. Maximum
D. Minimum
8 The resonance frequency is given by:
A. fr = 2π√LC
B. fr = 1/2πLC
C. fr = 1/ 2π√LC
D. f1 = 1/ 2πC√L
9 For electromagnetic waves, Maxwell generalized
A. Gauses law for magnetism
B. Gauses law for eletricity
C. Fradays law
D. Amperes law
10 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

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