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

Power dissipation in A.C circuit is expressed as:

Question # 2

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

Question # 3

The unit of impedance is

Question # 4

The resonance frequency is given by:

Question # 5

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

Question # 6

The peak to peak value of alternating voltage is

Question # 7

At high frequency, the current through a capacitor is

Question # 8

In frequency modulation which factor changed.

Question # 9

The circuit which compares the two voltages is.

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately

Question # 15

The circuit in which current and voltage are in phase, the power factor is:

Question # 16

In A.C circuit of inductor which one is true

Question # 17

An alternating quantity (voltage or current) is completely known if we know its:

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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 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
2 An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately
A. 50 Hz
B. 100 Hz
C. 80 Hz
D. 120 Hz
3 Electro magnetic waves emitted from radio antenna are.
A. Stationary
B. Longitudinal
C. Transvers
D. Both a and b
4 In Pakistan the frequency of A.C. supply is.
A. 50 Hz
B. 60 Hz
C. 45 Hz
D. 70 Hz
5 An alternating quantity (voltage or current) is completely known if we know its:
A. Maximum
B. Frequency and phase
C. Effective value
D. Both (a) & (b)
6 In A.C circuit through a capacitor which one is:
A. Current leads voltage by 90
B. Current lags behind voltage by 90
C. Both will be in phase
D. None of above 
7 100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.
A. 30.8 Ohm
B. 31.8 Ohm
C. 34.8 Ohm
D. 40 Ohm
8 In case of capacitor, the unit of reactance is
A. Farad
B. Ohm
C. Newton
D. All of these
9 Impedance is denoted by:
A. A 
B. Z
C. P
D. Q
10 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

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