2nd Year Physics Chapter 16 Online MCQ Test for 12th Class Physics Chapter 16 (Alternating Current)

ICS Part 2 Physics
Chapter 16 Test

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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 16 Online MCQ's Test"

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  • Total Questions17

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Physics ICS Part 2 Chapter 16 Online MCQ's Test

00:00
Question # 1

In three phase voltage across any two lines is about.

Question # 2

The circuit which compares the two voltages is.

Question # 3

Average value of current and voltage over a complete cycle is.

Question # 4

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

Question # 5

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

Question # 6

At high frequency, the current through a capacitor is

Question # 7

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

Question # 8

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

Question # 9

The expression P = VI hold only when current and voltage are.

Question # 10

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

Question # 11

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

Question # 12

100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.

Question # 13

The reactance of inductor depends upon

Question # 14

In RLC circuit the energy is dissipated in

Question # 15

In case of capacitor, the unit of reactance is

Question # 16

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

Question # 17

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

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ICS 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 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
2 The phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
3 In Series resonance circuit the impedance of circuit art resonance frequency, is
A. Maximum
B. Minimum
C. It is unequal to R
D. None of above
4 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
5 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
6 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
7 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
8 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
9 when an inductor comes close to a metallic object, its inductance is.
A. Decreased
B. Increased
C. Becomes half
D. Becomes 4 times
10 The device which allows only the flow of D.C. is.
A. Capacitors
B. transformer
C. Inductor
D. Generator

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