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 RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.

Question # 2

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

Question # 3

In modulation, low frequency signal is known as

Question # 4

Radio frequency choke is

Question # 5

At resonance, the behavior of R-L-C series circuit is.

Question # 6

Power dissipation is a pure inductive or in a pure capacitance circuit is:

Question # 7

The main use of A.C is

Question # 8

The wave form of alternating voltage is a

Question # 9

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

Question # 10

In frequency modulation, the amplitude of carrier waves is

Question # 11

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

Question # 12

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

Question # 13

The unit of impedance is.

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

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

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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 Electron vibrating 94,000 times each second will produce radio waves of frequency.
A. 94 Hz
B. 940 HZ
C. 94 Hz
D. 490 Hz
2 If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.
A. Half
B. Two
C. Four times
D. One fourth
3 At high frequency the value of reactance of capacitor will be.
A. Small
B. Zero
C. Large
D. Infinite
4 The Basic circuit element in a D.C. circuits which controls the current and voltage is
A.
Resistor
B. Inductor
C.
Capisitor
D. Transistor
5 In chopke coil the resistance XL an resistance R are:
A. XL=R
B. XL<<R
C. XL>>R
D. XL=
6 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
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 peak value of A.C source is 20 A, then its rms value will be.
A. 14.1 A
B. 10 A
C. 20 A
D. 28.2 A
9 Average value of current and voltage over a complete cycle is.
A. Positive
B. Negative
C. Zero
D. Infinite
10 Main reason for world wide use of A.C. is
A. It is cheaper
B. Transmitted
C. Botha a and b
D. Reaches in short time

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