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

Radio frequency choke is

Question # 2

The slope of q-t curve at any instant of time gives.

Question # 3

In chopke coil the resistance XL an resistance R are:

Question # 4

In Pakistan the frequency of A.C. supply is.

Question # 5

The circuit in which current and voltage are in phase, the power factor is:

Question # 6

An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately

Question # 7

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

Question # 8

In RLC circuit the energy is dissipated in

Question # 9

Unit of impedance is:

Question # 10

The phase difference between the current and voltage at resonce is:

Question # 11

The reactance of inductor depends upon

Question # 12

Resistance of choke is

Question # 13

In case of capacitor, the unit of reactance is

Question # 14

The sum of positive and negative peak value called.

Question # 15

An alternating quantity (voltage or current) is completely known if we know its:

Question # 16

The unit of impedance is

Question # 17

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

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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 At resonance frequency, the impedance of RLC series circuit is.
A. Maximum
B. Minimum
C. Zero
D. Infinite
2 Direct current can not flow through.
A. Inductor
B. Resistor
C. Transistor
D. Capacitor
3 At resonance, the behavior of R-L-C series circuit is.
A. Resistive
B. Capacitive
C. Inductive
D. Modulative
4 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
5 The basic circuit element in A.C. circuit which controls current.
A. Resistor only
B. Capacitor only
C. Inductor only
D. All of these
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 Main reason for world wide use of A.C. is
A. It is cheaper
B. Transmitted
C. Botha a and b
D. Reaches in short time
8 The effective value of any sinusoidal alternating current or voltage is
D. None of the above
9 Electro magnetic waves emitted from radio antenna are.
A. Stationary
B. Longitudinal
C. Transvers
D. Both a and b
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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