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

00:00
Question # 1

The reactance of inductor depends upon

Question # 2

XL=

Question # 3

Radio frequency choke is

Question # 4

An in cudutor may store energy in

Question # 5

SI unit of reactance is.

Question # 6

The inductive reactance of a coil is direction proportional to.

Question # 7

Vrms =

Question # 8

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

Question # 9

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

Question # 10

In RLC circuit the energy is dissipated in

Question # 11

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

Question # 12

In purely resistive A.C circuit, instantaneous value of voltage and current:

Question # 13

A capacitor is perfectly insulator for:

Question # 14

In an LRC circiut, the capacitance is made one-fourth, when an resonance . Then what should be change in inductance, so that the circuit remain in resonance?

Question # 15

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

Question # 16

Main reason for world wide use of A.C. is

Question # 17

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

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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 RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
2 SI unit of reactance is.
A. Ohm
B. Mho
C. Farad
D. Henry
3 The power factor of RL series circuit is.
A. 0
B. 1
C. Less then 1
D. More than one
4 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
5 In three phase A.C. generator the phase difference between each pair of coil is.
A. 45o
B. 90o
C. 120o
D. 60o
6 The wave form of alternating voltage is a
A. Cotangent curve
B. Cosine curve
C. Sine curve
D. Tangent curve
7 Electro magnetic waves emitted from radio antenna are.
A. Stationary
B. Longitudinal
C. Transvers
D. Both a and b
8 In A.C circuit of inductor which one is true
A. Voltage leads current by phase angle π/2
B. Voltage lags current by π/2
C. Current leads voltage by π/2
D. Both remain in phase
9 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
10 The main reason for world wide use of A.C is because:
A. It is very high power 
B. It can be transmitted over long distance
C. It is cheaper to use
D. ALl of above

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  • Butt

    Butt

    31 Mar 2020

    I want to give some test

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  • Rimsha

    Rimsha

    20 Oct 2019

    I am rimsha from kabirwala l am not belong to Lahore plz correct my city name

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  • atiyahassan

    atiyahassan

    20 Nov 2017

    aoa ....how to download it

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  • zia

    zia

    28 Jun 2016

    thankx

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