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

Vrms =

Question # 2

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

Question # 3

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

Question # 4

The sum of positive and negative peak value called.

Question # 5

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

Question # 6

Resistance of choke is

Question # 7

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

Question # 8

A resistance frequency the impedance of RLC parallel circuit is.

Question # 9

In AC system we generate sine wave form because:

Question # 10

At high frequency, the current through a capacitor is

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

In RLC circuit the energy is dissipated in

Question # 15

The unit of impedance is.

Question # 16

In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.

Question # 17

The combined effect of resistance and reactance is knows 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 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
2 Power dissipation in A.C circuit is expressed as:
A. P =Irms x Vrms Sinθ
B. IxVCosθ
C. IrmsxVrmsCosθ
D. Irms x Vrms Sin2θ
3 In frequency modulation, the amplitude of carrier waves is
A. Increases
B. Remains constant
C. Decreases
D. None of these
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 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
6 During each cycle A.C. voltage reaches a peak value.
A. Once
B. Twice
C. Thrice
D. Four time
7 100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.
A. 30.8 Ohm
B. 31.8 Ohm
C. 34.8 Ohm
D. 40 Ohm
8 Average value of current and voltage over a complete cycle is.
A. Positive
B. Negative
C. Zero
D. Infinite
9 In A.C circuit through a capacitor which one is:
A. Current leads voltage by 90
B. Current lags behind voltage by 90
C. Both will be in phase
D. None of above 
10 when an inductor comes close to a metallic object, its inductance is.
A. Decreased
B. Increased
C. Becomes half
D. Becomes 4 times

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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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