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

SI unit of reactance is.

Question # 2

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

Question # 3

Unit of impedance is:

Question # 4

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

Question # 5

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

Question # 6

The combined effect of resistance and reactance is knows as.

Question # 7

Power dissipation in A.C circuit is expressed as:

Question # 8

In A.C circuit through a capacitor which one is:

Question # 9

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

Question # 10

The unit of impedance is

Question # 11

Impedance is denoted by:

Question # 12

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

Question # 13

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

Question # 14

The value of capacitive reactance is given by

Question # 15

100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.

Question # 16

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

Question # 17

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

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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 chopke coil the resistance XL an resistance R are:
A. XL=R
B. XL<<R
C. XL>>R
D. XL=
2 In three phase A.C. generator the phase difference between each pair of coil is.
A. 45o
B. 90o
C. 120o
D. 60o
3 In case of capacitor, the unit of reactance is
A. Farad
B. Ohm
C. Newton
D. All of these
4 The AC system is preferred to DC system because:
A. AC voltage can be easily changed in magnitude
B. DC motor angular velocity is affected badly
C. High voltage AC transmission is less efficient
D. Domestic appliance require AC voltage for their operation
5 The device which allows only the continuous flow of AC through it is.
A. Inductor
B. Battery
C. Thermistor
D. Capacitor
6 Choke consumes extremely small
A. Current
B. Charge
C. Power
D. Potential
7 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
8 In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.
A. Maximum
B. Minimum
C. Zero
D. Negative
9 In three phase voltage across any two lines is about.
A. 220 V
B. 230 V
C. 400 V
D. 430 V
10 when an inductor comes close to a metallic object, its inductance is.
A. Decreased
B. Increased
C. Becomes half
D. Becomes 4 times

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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

    zia

    28 Jun 2016

    thankx

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