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

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Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

The peak value of A.C source is 20 A, then its rms value will be.

Question # 5

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

Question # 6

Resistance of choke is

Question # 7

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

Question # 8

The AC system is preferred to DC system because:

Question # 9

In case of capacitor, the unit of reactance is

Question # 10

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

Question # 11

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

Question # 12

The mean value of A.C. in a cycle is.

Question # 13

The combined effect of resistance and reactance is knows as.

Question # 14

For electromagnetic waves, Maxwell generalized

Question # 15

Power dissipation in A.C circuit is expressed as:

Question # 16

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

Question # 17

In modulation, low frequency signal is known as

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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 XL=
A. 2πfL
B. 1/2πfL
C. 2πfL
D. fL/2π
2 High frequency radio wave is called as
A. Fluctuate
B. Carrier wave
C. Matter wave
D. Mechanical wave
3 If Vrms be the root mean square value of emf then its peak to peak value is given by
4 In A.C circuit of inductor which one is true
A. Voltage leads current by phase angle π/2
B. Voltage lags current by π/2
C. Current leads voltage by π/2
D. Both remain in phase
5 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
6 A resistance frequency the impedance of RLC parallel circuit is.
A. Zero
B. Infinite
C. Maximum
D. Minimum
7 The phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
8 In a pure inductive A.C. circuit the current.
A. Lags behind voltage by 90 o
B. Leads the voltage by 90 o
C. In phase with voltage
D. Leads the voltage by 270 o
9 The sum of positive and negative peak value called.
A. R.M.S. value
B. P-P value
C. Peak value
D. Average value
10 The electromagnetic spectrum contains
A. Radio waves
B. X-rays
C. Microwaves
D. All of these

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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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