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

In AC system we generate sine wave form because:

Question # 2

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

Question # 3

In an LRC circiut, the capacitance is made one-fourth, when an resonance . Then what should be change in inductance, so that the circuit remain in resonance?

Question # 4

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

Question # 5

In RLC circuit the energy is dissipated in

Question # 6

Choke consumes extremely small

Question # 7

The electromagnetic spectrum contains

Question # 8

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

Question # 9

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

Question # 10

If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.

Question # 11

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

Question # 12

In case of capacitor, the unit of reactance is

Question # 13

Radio frequency choke is

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

The combined effect of resistance and reactance in circuit is called:

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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 three phase A.C supply coils are inclined at an angle of.
A. 0o
B. 90o
C. 120o
D. 80o
2 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple
3 In case of capacitor, the unit of reactance is
A. Farad
B. Ohm
C. Newton
D. All of these
4 The peak to peak value of alternating voltage is
A. 2Vo
B. Vo
D. None of these
5 Vrms =
A. 0.7V
B.
0.07V
C. 0.007V
D. 0.75V
6 The peak value of A.C source is 20 A, then its rms value will be.
A. 14.1 A
B. 10 A
C. 20 A
D. 28.2 A
7 The wave form of alternating voltage is a
A. Cotangent curve
B. Cosine curve
C. Sine curve
D. Tangent curve
8 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
9 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
10 In an LRC circiut, the capacitance is made one-fourth, when an resonance . Then what should be change in inductance, so that the circuit remain in resonance?
A. 4 times
B. 1/4 times
C. 8 times
D. 2 times

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