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 value of capacitive reactance is given by

Question # 2

when an inductor comes close to a metallic object, its inductance is.

Question # 3

Electro magnetic waves emitted from radio antenna are.

Question # 4

In Series resonance circuit the impedance of circuit art resonance frequency, is

Question # 5

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

Question # 6

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

Question # 7

The velocity of an oscillating charge as it moves to and fro along a wire is.

Question # 8

In modulation, low frequency signal is known as

Question # 9

The peak value of A.C source is 20 A, then its rms value will be.

Question # 10

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

Question # 11

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

Question # 12

The unit of impedance is.

Question # 13

The phase angle of a series RLC circult at resonant frequency is

Question # 14

If Vrms be the root mean square value of emf then its peak to peak value is given by

Question # 15

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

Question # 16

The sum of positive and negative peak value called.

Question # 17

A resistance frequency the impedance of RLC parallel circuit is.

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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 Power dissipated in a pure inductor is.
A. Large
B. Small
C. Infinite
D. Zero
2 The highest value reached by the voltage or current in one cycle is called.
A. Peak ot peak value
B. Peak value
C. Instantaneous value
D. Root mean square value
3 The sum of positive and negative peak value called.
A. R.M.S. value
B. P-P value
C. Peak value
D. Average value
4 In AC system we generate sine wave form because:
A. It san be easily draw
B. It produces least disturbance in electrical circuits
C. It is nature standard
D. Other waves cannot be produced easily
5 The main use of A.C is
A. Minimum line losses
B. Long distance transmission
C. Stepping up to required voltage only
D. Steeping down to required voltage only
6 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
7 In three phase A.C supply coils are inclined at an angle of.
A. 0o
B. 90o
C. 120o
D. 80o
8 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
9 In three phase A.C. generator the phase difference between each pair of coil is.
A. 45o
B. 90o
C. 120o
D. 60o
10 Choke consumes extremely small
A. Current
B. Charge
C. Power
D. Potential

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