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

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Question # 1

Electro magnetic waves emitted from radio antenna are.

Question # 2

The effective value of any sinusoidal alternating current or voltage is

Question # 3

The wave form of alternating voltage is a

Question # 4

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

Question # 5

In AC system we generate sine wave form because:

Question # 6

The expression P = VI hold only when current and voltage are.

Question # 7

Impedance is denoted by:

Question # 8

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

Question # 9

In pure capacitor A.C. circuit, the current I and charge q are.

Question # 10

Xc =

Question # 11

In modulation, low frequency signal is known as

Question # 12

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

Question # 13

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

Question # 14

Vrms =

Question # 15

In A.C circuit of inductor which one is true

Question # 16

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

Question # 17

Power dissipation is a pure inductive or in a pure capacitance circuit 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 In case of capacitor, the unit of reactance is
A. Farad
B. Ohm
C. Newton
D. All of these
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 combined effect of resistance and reactance is knows as.
A. Inductance
B. Conductance
C. Resistance
D. Impedance
4 A capacitor is perfectly insulator for:
A. Direct current
B. Alternating current
C. Direct as well as alternating current
D. None of these
5 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
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 Phase difference between V and I of an A.C through resistor is.
A. Zero Degree
B. 90 o
C. 80o
D. 120o
8 Unit of impedance is:
A. Ohm
B. Ohm-1
C. no unit
D. Ohm m-1
9 In Series resonance circuit the impedance of circuit art resonance frequency, is
A. Maximum
B. Minimum
C. It is unequal to R
D. None of above
10 In LR circiut which one of the following statements is correct?
A. L and R opposes each other
B. R value increases with frequency
C. The inductive reactance increases with frequency
D. The inductive reactance decreases with frequency

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