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

Xc =

Question # 2

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

Question # 3

Phase difference between V and I of an A.C through resistor is.

Question # 4

The sum of positive and negative peak value called.

Question # 5

Resistance of choke is

Question # 6

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

Question # 7

Impedance is denoted by:

Question # 8

In metal detector, we use.

Question # 9

In modulation, low frequency signal is known as

Question # 10

An alternating quantity (voltage or current) is completely known if we know its:

Question # 11

Power dissipation in A.C circuit is expressed as:

Question # 12

The value of capacitive reactance is given by

Question # 13

The device which allows only the flow of D.C. is.

Question # 14

In case of A.C. through resistor V and I are

Question # 15

SI unit of reactance is.

Question # 16

Direct current can not flow through.

Question # 17

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

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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 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
2 Vrms =
A. 0.7V
B.
0.07V
C. 0.007V
D. 0.75V
3 Radio frequency choke is
A. Iron cored
B. Air Cored
C. Air as well as iron cored
D. None of these
4 In purely resistive A.C circuit, instantaneous value of voltage and current:
A. Current lags behind voltage
B. Current leads voltage by π/2
C. Both are in Phase
D. Voltage leads current by Pase θ=π/2
5 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
6 When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.
A. 100 Ohm
B. 10 Ohm
C. 1000 Ohm
D. 1 Ohm
7 The inductive reactance of a coil is direction proportional to.
A. Inductance
B. Resistance
C. Frequency of A.C.
D. Both frequency of A.C. and inductance
8 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
9 If Vrms be the root mean square value of emf then its peak to peak value is given by
10 The effective value of any sinusoidal alternating current or voltage is
D. None of the 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

    20 Nov 2017

    aoa ....how to download it

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  • zia

    zia

    28 Jun 2016

    thankx

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