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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  • Total Questions17

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Physics ICS Part 2 Chapter 16 Online MCQ's Test

00:00
Question # 1

The device which allows only the continuous flow of AC through it is.

Question # 2

The unit of impedance is

Question # 3

In frequency modulation which factor changed.

Question # 4

X1is low for low frequency Fy but Xc is.

Question # 5

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

Question # 6

Power dissipation in A.C circuit is expressed as:

Question # 7

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

Question # 8

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

Question # 9

In three phase voltage across any two lines is about.

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

The A.M. transmission frequencies range from

Question # 14

Phase difference between V and I of an A.C through resistor is.

Question # 15

For electromagnetic waves, Maxwell generalized

Question # 16

In purely resistive A.C circuit, instantaneous value of voltage and current:

Question # 17

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

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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 Choke consumes extremely small
A. Current
B. Charge
C. Power
D. Potential
2 In A.C circuit of inductor which one is true
A. Voltage leads current by phase angle π/2
B. Voltage lags current by π/2
C. Current leads voltage by π/2
D. Both remain in phase
3 The combined effect of resistance and reactance is knows as.
A. Inductance
B. Conductance
C. Resistance
D. Impedance
4 The slope of q-t curve at any instant of time gives.
A. Voltage
B. Current
C. Charge
D. Botha a and b
5 The electromagnetic spectrum contains
A. Radio waves
B. X-rays
C. Microwaves
D. All of these
6 The phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
7 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)
8 In a pure inductive A.C. circuit the current.
A. Lags behind voltage by 90 o
B. Leads the voltage by 90 o
C. In phase with voltage
D. Leads the voltage by 270 o
9 The value of capacitive reactance is given by
A. Xc = VI
B. xc= 1/wc or xc= wL
C. xc= 1*wc or xc=Lw
D. All of above
10 The internal resistance of a capacitor is called:
A. Impedance
B. Resistance
C. Reactance
D. Conductance

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