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 LR circiut which one of the following statements is correct?

Question # 2

The unit of impedance is.

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

The natural frequency of L.C circuit is equal to

Question # 7

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

Question # 8

A resistance frequency the impedance of RLC parallel circuit is.

Question # 9

The wave form of alternating voltage is a

Question # 10

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

Question # 11

The velocity of an oscillating charge as it moves to and fro along a wire is.

Question # 12

High frequency radio wave is called as

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

The combined effect of resistance and reactance in circuit is called:

Question # 17

The circuit which compares the two voltages is.

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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 During each cycle A.C. voltage reaches a peak value.
A. Once
B. Twice
C. Thrice
D. Four time
2 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
3 If Io is the peak value of current, then its root mean square value is given by
B. 2 Io
C. Io
D. 0.7 Io
4 The combined effect of resistance and reactance is knows as.
A. Inductance
B. Conductance
C. Resistance
D. Impedance
5 X1is low for low frequency Fy but Xc is.
A. Zero
B. Low
C. High
D. Same is H
6 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
7 The flow of D.C current is opposed by
A. Resistor
B. Induction
C. Capacitor
D. All of these
8 At high frequency, the current through a capacitor is
A. Small
B. Infinity
C. Zero
D. Large
9 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
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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