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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ICS Part 2 Physics Chapter Wise 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

The sum of positive and negative peak value called.

Question # 2

SI unit of reactance is.

Question # 3

An electromagnetic wave goes from air to glass which of the following does not change?

Question # 4

In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.

Question # 5

The electromagnetic spectrum contains

Question # 6

The combined effect of resistance and reactance is knows as.

Question # 7

In three phase A.C. generator the phase difference between each pair of coil is.

Question # 8

Unit of impedance is:

Question # 9

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

Question # 10

The resonance frequency is given by:

Question # 11

Direct current can not flow through.

Question # 12

The most common source of an A.C. Voltage is.

Question # 13

when an inductor comes close to a metallic object, its inductance is.

Question # 14

At resonance frequency, the impedance of RLC series circuit is.

Question # 15

The AC system is preferred to DC system because:

Question # 16

Electron vibrating 94,000 times each second will produce radio waves of frequency.

Question # 17

Phase difference between V and I of an A.C through resistor 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 Impedance is denoted by:
A. A 
B. Z
C. P
D. Q
2 At resonance, the behavior of R-L-C series circuit is.
A. Resistive
B. Capacitive
C. Inductive
D. Modulative
3 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)
4 In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.
A. Maximum
B. Minimum
C. Zero
D. Negative
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 AC system we generate sine wave form because:
A. It san be easily draw
B. It produces least disturbance in electrical circuits
C. It is nature standard
D. Other waves cannot be produced easily
7 The AC system is preferred to DC system because:
A. AC voltage can be easily changed in magnitude
B. DC motor angular velocity is affected badly
C. High voltage AC transmission is less efficient
D. Domestic appliance require AC voltage for their operation
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 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
10 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ

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