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

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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

The expression P = VI hold only when current and voltage are.

Question # 6

In modulation, low frequency signal is known as

Question # 7

An electromagnetic wave goes from air to glass which of the following does not change?

Question # 8

In pure capacitor A.C. circuit, the current I and charge q are.

Question # 9

Radio frequency choke is

Question # 10

The device which allows only the flow of D.C. is.

Question # 11

In metal detector, we use.

Question # 12

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

Question # 13

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

Question # 14

The AC system is preferred to DC system because:

Question # 15

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

Question # 16

The natural frequency of L.C circuit is equal to

Question # 17

The peak to peak value of alternating 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 The resonance frequency is given by:
A. fr = 2π√LC
B. fr = 1/2πLC
C. fr = 1/ 2π√LC
D. f1 = 1/ 2πC√L
2 At resonance frequency, the impedance of RLC series circuit is.
A. Maximum
B. Minimum
C. Zero
D. Infinite
3 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
4 A capacitor is perfectly insulator for:
A. Direct current
B. Alternating current
C. Direct as well as alternating current
D. None of these
5 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
6 Unit of impedance is:
A. Ohm
B. Ohm-1
C. no unit
D. Ohm m-1
7 Radio frequency choke is
A. Iron cored
B. Air Cored
C. Air as well as iron cored
D. None of these
8 For electromagnetic waves, Maxwell generalized
A. Gauses law for magnetism
B. Gauses law for eletricity
C. Fradays law
D. Amperes law
9 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil
10 The natural frequency of L.C circuit is equal to

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