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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  • Total Questions17

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Physics ICS Part 2 Chapter 16 Online MCQ's Test

00:00
Question # 1

The electromagnetic spectrum contains

Question # 2

The reactance is the ratio of

Question # 3

The main use of A.C is

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

An in cudutor may store energy in

Question # 9

In A.C circuit of inductor which one is true

Question # 10

The wave form of alternating voltage is a

Question # 11

In Pakistan the frequency of A.C. supply is.

Question # 12

The resonance frequency is given by:

Question # 13

High frequency radio wave is called as

Question # 14

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

Question # 15

The peak to peak value of alternating voltage is

Question # 16

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

Question # 17

The effective value of any sinusoidal alternating current or voltage 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 At high frequency, the current through a capacitor is
A. Small
B. Infinity
C. Zero
D. Large
2 The effective value of any sinusoidal alternating current or voltage is
D. None of the above
3 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
4 X1is low for low frequency Fy but Xc is.
A. Zero
B. Low
C. High
D. Same is H
5 The value of capacitive reactance is given by
A. Xc = VI
B. xc= 1/wc or xc= wL
C. xc= 1*wc or xc=Lw
D. All of above
6 At high frequency the value of reactance of capacitor will be.
A. Small
B. Zero
C. Large
D. Infinite
7 Direct current can not flow through.
A. Inductor
B. Resistor
C. Transistor
D. Capacitor
8 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit
9 The phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
10 In three phase A.C supply coils are inclined at an angle of.
A. 0o
B. 90o
C. 120o
D. 80o

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