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 Pakistan the frequency of A.C. supply is.

Question # 2

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

Question # 3

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

Question # 4

Direct current can not flow through.

Question # 5

The electromagnetic spectrum contains

Question # 6

Choke consumes extremely small

Question # 7

An A.C. voltmeter reads 220 V, its peak value will be

Question # 8

At high frequency the value of reactance of capacitor will be.

Question # 9

The power factor of RL series circuit is.

Question # 10

SI unit of reactance is.

Question # 11

Vrms =

Question # 12

Electro magnetic waves emitted from radio antenna are.

Question # 13

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

Question # 14

The main use of A.C is

Question # 15

Radio frequency choke is

Question # 16

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

Question # 17

In frequency modulation, the amplitude of carrier waves 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 resonance frequency, the impedance of RLC series circuit is.
A. Maximum
B. Minimum
C. Zero
D. Infinite
2 The peak to peak value of alternating voltage is
A. 2Vo
B. Vo
D. None of these
3 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
4 Unit of impedance is:
A. Ohm
B. Ohm-1
C. no unit
D. Ohm m-1
5 During each cycle A.C. voltage reaches a peak value.
A. Once
B. Twice
C. Thrice
D. Four time
6 The phase difference between current and voltage in an inductive circuit is.
A. zero
B. 90 o
C. 180 o
D. 45o
7 The expression P = VI hold only when current and voltage are.
A. In phase
B. Out of phase
C. At right angle to each other
D. At angle of 120 o
8 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit
9 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil
10 High frequency radio wave is called as
A. Fluctuate
B. Carrier wave
C. Matter wave
D. Mechanical wave

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