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

Question # 2

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

Question # 3

Direct current can not flow through.

Question # 4

The combined effect of resistance and reactance is knows as.

Question # 5

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

Question # 6

In RLC circuit the energy is dissipated in

Question # 7

The value of capacitive reactance is given by

Question # 8

The unit of impedance is

Question # 9

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

Question # 10

The circuit which compares the two voltages is.

Question # 11

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

Question # 12

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

Question # 13

In three phase voltage across any two lines is about.

Question # 14

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

Question # 15

The inductive reactance of a coil is direction proportional to.

Question # 16

In frequency modulation which factor changed.

Question # 17

In A.C circuit through a capacitor which one 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 Electro magnetic waves emitted from radio antenna are.
A. Stationary
B. Longitudinal
C. Transvers
D. Both a and b
2 High frequency radio wave is called as
A. Fluctuate
B. Carrier wave
C. Matter wave
D. Mechanical wave
3 At resonance, the behavior of R-L-C series circuit is.
A. Resistive
B. Capacitive
C. Inductive
D. Modulative
4 Impedance is denoted by:
A. A 
B. Z
C. P
D. Q
5 During each cycle A.C. voltage reaches a peak value.
A. Once
B. Twice
C. Thrice
D. Four time
6 An alternating quantity (voltage or current) is completely known if we know its:
A. Maximum
B. Frequency and phase
C. Effective value
D. Both (a) & (b)
7 In three phase A.C. generator the phase difference between each pair of coil is.
A. 45o
B. 90o
C. 120o
D. 60o
8 In a pure inductive A.C. circuit the current.
A. Lags behind voltage by 90 o
B. Leads the voltage by 90 o
C. In phase with voltage
D. Leads the voltage by 270 o
9 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
10 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil

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