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

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

Question # 2

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

Question # 3

The phase difference between current and voltage in an inductive circuit is.

Question # 4

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

Question # 5

If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.

Question # 6

The device which allows only the continuous flow of AC through it is.

Question # 7

In RLC circuit the energy is dissipated in

Question # 8

The flow of D.C current is opposed by

Question # 9

The combined effect of resistance and reactance in circuit is called:

Question # 10

The Basic circuit element in a D.C. circuits which controls the current and voltage is

Question # 11

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

Question # 12

Power dissipation in A.C circuit is expressed as:

Question # 13

XL=

Question # 14

Electro magnetic waves emitted from radio antenna are.

Question # 15

In chopke coil the resistance XL an resistance R are:

Question # 16

A resistance frequency the impedance of RLC parallel circuit is.

Question # 17

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

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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.C circuit through a capacitor which one is:
A. Current leads voltage by 90
B. Current lags behind voltage by 90
C. Both will be in phase
D. None of above 
2 Power dissipated in a pure inductor is.
A. Large
B. Small
C. Infinite
D. Zero
3 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
4 The peak value of alternating current is 5√2 A. The mean square value of current will be:
A. 5A
B. 2.5A
C. 5√2A
D. 52
5 The peak value of alternating current is 5√2 A. The mean square value of current will be:
A. 5A
B. 2.5A
C. 5√2A
D. 52
6 The highest value reached by the voltage or current is one cycle is called:
A. Peak to peak value
B. Peak value
C.
Instantaneous value
D. Root mean square value
7 The phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
8 A capacitor is perfectly insulator for:
A. Direct current
B. Alternating current
C. Direct as well as alternating current
D. None of these
9 Vrms =
A. 0.7V
B.
0.07V
C. 0.007V
D. 0.75V
10 In three phase A.C. generator the phase difference between each pair of coil is.
A. 45o
B. 90o
C. 120o
D. 60o

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