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

The condition of resonance is:

Question # 2

The basic circuit element in A.C. circuit which controls current.

Question # 3

The peak value of alternating current is 5√2 A. The mean square value of current will be:

Question # 4

An A.C. voltmeter reads 220 V, its peak value will be

Question # 5

Direct current can not flow through.

Question # 6

Choke consumes extremely small

Question # 7

The peak value of alternating current is 5√2 A. The mean square value of current will be:

Question # 8

In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.

Question # 9

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

Question # 10

The highest value reached by the voltage or current in one cycle is called.

Question # 11

The phase angle of a series RLC circult at resonant frequency is

Question # 12

SI unit of reactance is.

Question # 13

The unit of impedance is

Question # 14

In metal detector, we use.

Question # 15

For electromagnetic waves, Maxwell generalized

Question # 16

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

Question # 17

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

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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 The combined effect of resistance and reactance in circuit is called:
A. Impedance
B. Inductance
C. Capacitance
D. None of above
2 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
3 The peak to peak value of alternating voltage is
A. 2Vo
B. Vo
D. None of these
4 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
5 In three phase voltage across any two lines is about.
A. 220 V
B. 230 V
C. 400 V
D. 430 V
6 The device which allows only the flow of D.C. is.
A. Capacitors
B. transformer
C. Inductor
D. Generator
7 In case of capacitor, the unit of reactance is
A. Farad
B. Ohm
C. Newton
D. All of these
8 In frequency modulation, the amplitude of carrier waves is
A. Increases
B. Remains constant
C. Decreases
D. None of these
9 Resistance of choke is
A. zero
B. Large
C. Very small
D. Infinite
10 The flow of D.C current is opposed by
A. Resistor
B. Induction
C. Capacitor
D. All of these

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