Second Year Physics Chapter 16 Online MCQ Test for 2nd Year Physics Chapter 16 Alternating Current Preparation

FSC Part 2 Physics
Chapter 16 Test

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Physics FSC Part 2 Chapter 16 Online MCQ's Test

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Question # 1

The main reason for world wide use of A.C is because:

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

The A.M. transmission frequencies range from

Question # 8

Electron vibrating 94,000 times each second will produce radio waves of frequency.

Question # 9

In RLC circuit the energy is dissipated in

Question # 10

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

Question # 11

The wave form of alternating voltage is a

Question # 12

The flow of D.C current is opposed by

Question # 13

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

Question # 14

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

Question # 15

In frequency modulation, the amplitude of carrier waves is

Question # 16

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

Question # 17

Impedance is denoted by:

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FSC 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 three phase voltage across any two lines is about.
A. 220 V
B. 230 V
C. 400 V
D. 430 V
2 The circuit which compares the two voltages is.
A. LDR
B. Sensor
C. Comparator
D. Logic gate
3 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
4 Electro magnetic waves emitted from radio antenna are.
A. Stationary
B. Longitudinal
C. Transvers
D. Both a and b
5 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit
6 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
7 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
8 Power dissipation is a pure inductive or in a pure capacitance circuit is:
A. 106
B. 0
C. 10∘
D. Maximum
9 The A.M. transmission frequencies range from
A. 540 KHz to 1000 KHz
B. 540 Khz to 1600 KHz
C. 520 KHz TO 1600 KHz
D. 520 KHz TO 1400 KHz
10 The wave form of alternating voltage is a
A. Cotangent curve
B. Cosine curve
C. Sine curve
D. Tangent curve

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