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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MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 16 Online MCQ's Test"

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Physics FSC Part 2 Chapter 16 Online MCQ's Test

00:00
Question # 1

Electron vibrating 94,000 times each second will produce radio waves of frequency.

Question # 2

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

Question # 3

In modulation, low frequency signal is known as

Question # 4

If Vrms be the root mean square value of emf then its peak to peak value is given by

Question # 5

When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.

Question # 6

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

Question # 7

The value of capacitive reactance is given by

Question # 8

Direct current can not flow through.

Question # 9

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

Question # 10

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

Question # 11

A resistance frequency the impedance of RLC parallel circuit is.

Question # 12

Main reason for world wide use of A.C. is

Question # 13

The circuit in which current and voltage are in phase, the power factor is:

Question # 14

The internal resistance of a capacitor is called:

Question # 15

An in cudutor may store energy in

Question # 16

Vrms =

Question # 17

In frequency modulation, the amplitude of carrier waves 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 combined effect of resistance and reactance is knows as.
A. Inductance
B. Conductance
C. Resistance
D. Impedance
2 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit
3 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil
4 The expression P = VI hold only when current and voltage are.
A. In phase
B. Out of phase
C. At right angle to each other
D. At angle of 120 o
5 In case of A.C. through resistor V and I are
A. At 0 o with each other
B. At 180 o with each other
C. At 90 o with each other
D. At 270 o with each other
6 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
7 The reactance of inductor depends upon
A. L
D. All of the above
8 An alternating quantity (voltage or current) is completely known if we know its:
A. Maximum
B. Frequency and phase
C. Effective value
D. Both (a) & (b)
9 In an LRC circiut, the capacitance is made one-fourth, when an resonance . Then what should be change in inductance, so that the circuit remain in resonance?
A. 4 times
B. 1/4 times
C. 8 times
D. 2 times
10 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

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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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