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

During each cycle A.C. voltage reaches a peak value.

Question # 2

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

Question # 3

SI unit of reactance is.

Question # 4

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

Question # 5

In LR circiut which one of the following statements is correct?

Question # 6

The natural frequency of L.C circuit is equal to

Question # 7

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

Question # 8

The flow of D.C current is opposed by

Question # 9

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

Question # 10

High frequency radio wave is called as

Question # 11

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

Question # 12

Which consumes small power.

Question # 13

The unit of impedance is

Question # 14

The velocity of an oscillating charge as it moves to and fro along a wire is.

Question # 15

In three phase voltage across any two lines is about.

Question # 16

The AC system is preferred to DC system because:

Question # 17

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

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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 Phase difference between V and I of an A.C through resistor is.
A. Zero Degree
B. 90 o
C. 80o
D. 120o
2 The peak to peak value of alternating voltage is
A. 2Vo
B. Vo
D. None of these
3 The electromagnetic spectrum contains
A. Radio waves
B. X-rays
C. Microwaves
D. All of these
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 Power dissipation is a pure inductive or in a pure capacitance circuit is:
A. 106
B. 0
C. 10
D. Maximum
6 In case of capacitor, the unit of reactance is
A. Farad
B. Ohm
C. Newton
D. All of these
7 An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage is:
A. 50 Hz
B. 25Hz
C. 100 Hz
D. 75 Hz
8 During each cycle A.C. voltage reaches a peak value.
A. Once
B. Twice
C. Thrice
D. Four time
9 The circuit in which current and voltage are in phase, the power factor is:
A. Zero
B. 1
C. -1
D. 2
10 X1is low for low frequency Fy but Xc is.
A. Zero
B. Low
C. High
D. Same is H

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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

    20 Nov 2017

    aoa ....how to download it

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    zia

    28 Jun 2016

    thankx

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