Second Year Physics Chapter 16 Online MCQ Test for 2nd Year Physics Chapter 16 Alternating Current Preparation

FSC Part 2 Physics
Chapter 16 Test

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Physics FSC Part 2 Chapter 16 Online MCQ's Test

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Question # 1

In A.C circuit of inductor which one is true

Question # 2

The unit of impedance is.

Question # 3

The sum of positive and negative peak value called.

Question # 4

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

Question # 5

The device which allows only the flow of D.C. is.

Question # 6

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

Question # 7

If Io is the peak value of current, then its root mean square value is given by

Question # 8

XL=

Question # 9

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

Question # 10

In metal detector, we use.

Question # 11

The peak to peak value of alternating voltage is

Question # 12

Direct current can not flow through.

Question # 13

In three phase voltage across any two lines is about.

Question # 14

In AC system we generate sine wave form because:

Question # 15

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

Question # 16

In chopke coil the resistance XL an resistance R are:

Question # 17

When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.

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FSC 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 At high frequency the value of reactance of capacitor will be.
A. Small
B. Zero
C. Large
D. Infinite
3 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
4 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
5 Power dissipation is a pure inductive or in a pure capacitance circuit is:
A. 106
B. 0
C. 10
D. Maximum
6 In a pure inductive A.C. circuit the current.
A. Lags behind voltage by 90 o
B. Leads the voltage by 90 o
C. In phase with voltage
D. Leads the voltage by 270 o
7 At resonance, the behavior of R-L-C series circuit is.
A. Resistive
B. Capacitive
C. Inductive
D. Modulative
8 Electro magnetic waves emitted from radio antenna are.
A. Stationary
B. Longitudinal
C. Transvers
D. Both a and b
9 The circuit in which current and voltage are in phase, the power factor is:
A. Zero
B. 1
C. -1
D. 2
10 In three phase A.C. generator the phase difference between each pair of coil is.
A. 45o
B. 90o
C. 120o
D. 60o

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