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

The internal resistance of a capacitor is called:

Question # 2

At resonance, the behavior of R-L-C series circuit is.

Question # 3

The combined effect of resistance and reactance is knows as.

Question # 4

The wave form of alternating voltage is a

Question # 5

Phase difference between V and I of an A.C through resistor is.

Question # 6

In modulation, low frequency signal is known as

Question # 7

In LR circiut which one of the following statements is correct?

Question # 8

Power dissipation in A.C circuit is expressed as:

Question # 9

The peak to peak value of alternating voltage is

Question # 10

The peak value of A.C source is 20 A, then its rms value will be.

Question # 11

In A.C circuit through a capacitor which one is:

Question # 12

The phase difference between the current and voltage at resonce is:

Question # 13

The circuit in which current and voltage are in phase, the power factor is:

Question # 14

XL=

Question # 15

In Series resonance circuit the impedance of circuit art resonance frequency, is

Question # 16

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

Question # 17

In A.C circuit of inductor which one is true

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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 Impedance is denoted by:
A. A 
B. Z
C. P
D. Q
2 Direct current can not flow through.
A. Inductor
B. Resistor
C. Transistor
D. Capacitor
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 The flow of D.C current is opposed by
A. Resistor
B. Induction
C. Capacitor
D. All of these
5 In purely resistive A.C circuit, instantaneous value of voltage and current:
A. Current lags behind voltage
B. Current leads voltage by π/2
C. Both are in Phase
D. Voltage leads current by Pase θ=π/2
6 Electro magnetic waves emitted from radio antenna are.
A. Stationary
B. Longitudinal
C. Transvers
D. Both a and b
7 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
8 The slope of q-t curve at any instant of time gives.
A. Voltage
B. Current
C. Charge
D. Botha a and b
9 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
10 The peak value of A.C source is 20 A, then its rms value will be.
A. 14.1 A
B. 10 A
C. 20 A
D. 28.2 A

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