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 value of capacitive reactance is given by

Question # 2

Unit of impedance is:

Question # 3

Vrms =

Question # 4

The combined effect of resistance and reactance is knows as.

Question # 5

In frequency modulation, the amplitude of carrier waves is

Question # 6

The velocity of an oscillating charge as it moves to and fro along a wire is.

Question # 7

The inductive reactance of a coil is direction proportional to.

Question # 8

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

Question # 9

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

Question # 10

The main use of A.C is

Question # 11

Power dissipated in a pure inductor is.

Question # 12

Direct current can not flow through.

Question # 13

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

Question # 14

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

Question # 15

The sum of positive and negative peak value called.

Question # 16

The AC system is preferred to DC system because:

Question # 17

The phase difference between current and voltage in an inductive 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 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
2 In frequency modulation, the amplitude of carrier waves is
A. Increases
B. Remains constant
C. Decreases
D. None of these
3 The peak value of alternating current is 5√2 A. The mean square value of current will be:
A. 5A
B. 2.5A
C. 5√2A
D. 52
4 The expression P = VI hold only when current and voltage are.
A. In phase
B. Out of phase
C. At right angle to each other
D. At angle of 120 o
5 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit
6 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
7 An electromagnetic wave goes from air to glass which of the following does not change?
A. Radio waves
B. X-rays
C. Ultra violet radiation
D. Ultra sond waves
8 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
9 Unit of impedance is:
A. Ohm
B. Ohm-1
C. no unit
D. Ohm m-1
10 The velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero

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