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

00:00
Question # 1

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

Question # 2

At resonance frequency, the impedance of RLC series circuit is.

Question # 3

At high frequency, the current through a capacitor is

Question # 4

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

Question # 5

The highest value reached by the voltage or current in one cycle is called.

Question # 6

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

Question # 7

Vrms =

Question # 8

In frequency modulation which factor changed.

Question # 9

X1is low for low frequency Fy but Xc is.

Question # 10

The circuit which compares the two voltages is.

Question # 11

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

Question # 12

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

Question # 13

In RLC circuit the energy is dissipated in

Question # 14

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

Question # 15

During each cycle A.C. voltage reaches a peak value.

Question # 16

A capacitor is perfectly insulator for:

Question # 17

Power dissipation in A.C circuit is expressed as:

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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 RLC circuit the energy is dissipated in
A. R only
B. R and L
C. R and C
D. L and C
2 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
3 The flow of D.C current is opposed by
A. Resistor
B. Induction
C. Capacitor
D. All of these
4 Resistance of choke is
A. zero
B. Large
C. Very small
D. Infinite
5 The unit of impedance is.
A. Henry
B. Hertz
C. Ampere
D. Ohm
6 The reactance is the ratio of
A. Vrms/Irms
B. Vrms x Irms
C. Irms/Vrms
D. Vmax x Vrms
7 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
8 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
9 In chopke coil the resistance XL an resistance R are:
A. XL=R
B. XL<<R
C. XL>>R
D. XL=
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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