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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Physics ICS Part 2 Chapter 16 Online MCQ's Test

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Question # 1

In RLC circuit the energy is dissipated in

Question # 2

The unit of impedance is

Question # 3

The peak to peak value of alternating voltage is

Question # 4

In chopke coil the resistance XL an resistance R are:

Question # 5

Main reason for world wide use of A.C. is

Question # 6

The AC system is preferred to DC system because:

Question # 7

An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage is:

Question # 8

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

Question # 9

Xc =

Question # 10

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

Question # 11

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

Question # 12

Electro magnetic waves emitted from radio antenna are.

Question # 13

In three phase voltage across any two lines is about.

Question # 14

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

Question # 15

The internal resistance of a capacitor is called:

Question # 16

when an inductor comes close to a metallic object, its inductance is.

Question # 17

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

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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 modulation, low frequency signal is known as
A. Carrier wave
B. fluctuated signal
C. Modulated carrier signal
D. Modulation signal
2 XL=
A. 2πfL
B. 1/2πfL
C. 2πfL
D. fL/2π
3 The flow of D.C current is opposed by
A. Resistor
B. Induction
C. Capacitor
D. All of these
4 The effective value of any sinusoidal alternating current or voltage is
D. None of the above
5 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
6 A capacitor is perfectly insulator for:
A. Direct current
B. Alternating current
C. Direct as well as alternating current
D. None of these
7 The phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
8 The device which allows only the flow of D.C. is.
A. Capacitors
B. transformer
C. Inductor
D. Generator
9 Impedance is denoted by:
A. A 
B. Z
C. P
D. Q
10 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil

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