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

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

Question # 2

In case of A.C. through resistor V and I are

Question # 3

In a pure inductive A.C. circuit the current.

Question # 4

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

Question # 5

In three phase voltage across any two lines is about.

Question # 6

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

Question # 7

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

Question # 8

The resonance frequency is given by:

Question # 9

The unit of impedance is.

Question # 10

Electro magnetic waves emitted from radio antenna are.

Question # 11

The reactance of inductor depends upon

Question # 12

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

Question # 13

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

Question # 14

An in cudutor may store energy in

Question # 15

In AC system we generate sine wave form because:

Question # 16

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

Question # 17

In LR circiut which one of the following statements is correct?

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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 reactance of inductor depends upon
A. L
D. All of the above
2 Vrms =
A. 0.7V∘
B.
0.07V∘
C. 0.007V∘
D. 0.75V∘
3 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
4 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
5 Main reason for world wide use of A.C. is
A. It is cheaper
B. Transmitted
C. Botha a and b
D. Reaches in short time
6 The wave form of alternating voltage is a
A. Cotangent curve
B. Cosine curve
C. Sine curve
D. Tangent curve
7 The circuit in which current and voltage are in phase, the power factor is:
A. Zero
B. 1
C. -1
D. 2
8 In frequency modulation which factor changed.
A. Amplitude of charge carriers
B. Frequency of charge carriers
C. Amplitude of signal
D. Frequency of signal
9 The circuit which compares the two voltages is.
A. LDR
B. Sensor
C. Comparator
D. Logic gate
10 The resonance frequency is given by:
A. fr = 2π√LC
B. fr = 1/2πLC
C. fr = 1/ 2π√LC
D. f1 = 1/ 2πC√L

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