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 AC system is preferred to DC system because:

Question # 2

The unit of impedance is.

Question # 3

A capacitor is perfectly insulator for:

Question # 4

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

Question # 5

In three phase A.C. generator the phase difference between each pair of coil is.

Question # 6

SI unit of reactance is.

Question # 7

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

Question # 8

Resistance of choke is

Question # 9

In three phase voltage across any two lines is about.

Question # 10

Average value of current and voltage over a complete cycle is.

Question # 11

XL=

Question # 12

X1is low for low frequency Fy but Xc is.

Question # 13

Power dissipation in A.C circuit is expressed as:

Question # 14

Unit of impedance is:

Question # 15

The expression P = VI hold only when current and voltage are.

Question # 16

An in cudutor may store energy in

Question # 17

The A.M. transmission frequencies range from

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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 unit of impedance is.
A. Henry
B. Hertz
C. Ampere
D. Ohm
2 An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately
A. 50 Hz
B. 100 Hz
C. 80 Hz
D. 120 Hz
3 Vrms =
A. 0.7V
B.
0.07V
C. 0.007V
D. 0.75V
4 The resonance frequency is given by:
A. fr = 2π√LC
B. fr = 1/2πLC
C. fr = 1/ 2π√LC
D. f1 = 1/ 2πC√L
5 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
6 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
7 The phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
8 If Vrms be the root mean square value of emf then its peak to peak value is given by
9 The peak to peak value of alternating voltage is
A. 2Vo
B. Vo
D. None of these
10 In Pakistan the frequency of A.C. supply is.
A. 50 Hz
B. 60 Hz
C. 45 Hz
D. 70 Hz

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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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