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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Physics ICS Part 2 Chapter 16 Online MCQ's Test

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Question # 1

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

Question # 2

The most common source of an A.C. Voltage is.

Question # 3

In RLC circuit the energy is dissipated in

Question # 4

Resistance of choke is

Question # 5

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

Question # 6

Electro magnetic waves emitted from radio antenna are.

Question # 7

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

Question # 8

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

Question # 9

The main use of A.C is

Question # 10

Radio frequency choke is

Question # 11

The combined effect of resistance and reactance is knows as.

Question # 12

A resistance frequency the impedance of RLC parallel circuit is.

Question # 13

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

Question # 14

Impedance is denoted by:

Question # 15

Direct current can not flow through.

Question # 16

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

Question # 17

Choke consumes extremely small

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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 Pakistan the frequency of A.C. supply is.
A. 50 Hz
B. 60 Hz
C. 45 Hz
D. 70 Hz
2 In modulation, low frequency signal is known as
A. Carrier wave
B. fluctuated signal
C. Modulated carrier signal
D. Modulation signal
3 The wave form of alternating voltage is a
A. Cotangent curve
B. Cosine curve
C. Sine curve
D. Tangent curve
4 In Series resonance circuit the impedance of circuit art resonance frequency, is
A. Maximum
B. Minimum
C. It is unequal to R
D. None of above
5 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
6 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil
7 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
8 In three phase A.C. generator the phase difference between each pair of coil is.
A. 45o
B. 90o
C. 120o
D. 60o
9 A resistance frequency the impedance of RLC parallel circuit is.
A. Zero
B. Infinite
C. Maximum
D. Minimum
10 If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.
A. Half
B. Two
C. Four times
D. One fourth

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