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

An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage is:

Question # 2

Which consumes small power.

Question # 3

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

Question # 4

The reactance is the ratio of

Question # 5

In A.C circuit of inductor which one is true

Question # 6

At high frequency the value of reactance of capacitor will be.

Question # 7

Resistance of choke is

Question # 8

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

Question # 9

Vrms =

Question # 10

If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.

Question # 11

In a pure inductive A.C. circuit the current.

Question # 12

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

Question # 13

In AC system we generate sine wave form because:

Question # 14

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

Question # 15

X1is low for low frequency Fy but Xc is.

Question # 16

The most common source of an A.C. Voltage is.

Question # 17

The device which allows only the continuous flow of AC through it is.

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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 device which allows only the flow of D.C. is.
A. Capacitors
B. transformer
C. Inductor
D. Generator
2 In chopke coil the resistance XL an resistance R are:
A. XL=R
B. XL<<R
C. XL>>R
D. XL=
3 The sum of positive and negative peak value called.
A. R.M.S. value
B. P-P value
C. Peak value
D. Average value
4 In three phase A.C. generator the phase difference between each pair of coil is.
A. 45o
B. 90o
C. 120o
D. 60o
5 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
6 If Io is the peak value of current, then its root mean square value is given by
B. 2 Io
C. Io
D. 0.7 Io
7 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
8 At high frequency the value of reactance of capacitor will be.
A. Small
B. Zero
C. Large
D. Infinite
9 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil
10 Unit of impedance is:
A. Ohm
B. Ohm-1
C. no unit
D. Ohm m-1

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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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