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

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

Question # 2

At resonance, the behavior of R-L-C series circuit is.

Question # 3

The unit of impedance is

Question # 4

The phase difference between current and voltage in an inductive circuit is.

Question # 5

The natural frequency of L.C circuit is equal to

Question # 6

The effective value of any sinusoidal alternating current or voltage is

Question # 7

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?

Question # 8

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

Question # 9

The internal resistance of a capacitor is called:

Question # 10

Choke consumes extremely small

Question # 11

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

Question # 12

The main reason for world wide use of A.C is because:

Question # 13

Vrms =

Question # 14

The phase difference between the current and voltage at resonce is:

Question # 15

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

Question # 16

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

Question # 17

The wave form of alternating voltage is a

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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 Power dissipation is a pure inductive or in a pure capacitance circuit is:
A. 106
B. 0
C. 10
D. Maximum
2 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
3 The phase angle of a series RLC circult at resonant frequency is
A. 1/2
B. sigma
C. Zero
D. sigma /4
4 The phase difference between the current and voltage at resonce is:
A. 0
B. π
C. -π
D. π/2
5 The internal resistance of a capacitor is called:
A. Impedance
B. Resistance
C. Reactance
D. Conductance
6 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
7 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
8 In three phase A.C. generator the phase difference between each pair of coil is.
A. 45o
B. 90o
C. 120o
D. 60o
9 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
10 The circuit which compares the two voltages is.
A. LDR
B. Sensor
C. Comparator
D. Logic gate

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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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