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

Question # 3

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

Question # 4

The reactance is the ratio of

Question # 5

The sum of positive and negative peak value called.

Question # 6

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

Question # 7

In three phase A.C. generator the phase difference between each pair of coil is.

Question # 8

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

Question # 9

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

Question # 10

In frequency modulation, the amplitude of carrier waves is

Question # 11

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

Question # 12

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

Question # 13

Resistance of choke is

Question # 14

A resistance frequency the impedance of RLC parallel circuit is.

Question # 15

In LR circiut which one of the following statements is correct?

Question # 16

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

Question # 17

An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage 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 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
2 In Series resonance circuit the impedance of circuit art resonance frequency, is
A. Maximum
B. Minimum
C. It is unequal to R
D. None of above
3 If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.
A. Half
B. Two
C. Four times
D. One fourth
4 Electron vibrating 94,000 times each second will produce radio waves of frequency.
A. 94 Hz
B. 940 HZ
C. 94 Hz
D. 490 Hz
5 An in cudutor may store energy in
A. Its magnetic field
B. Its coil
C. Its electric field
D. A neighboring circuit
6 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple
7 The peak to peak value of alternating voltage is
A. 2Vo
B. Vo
D. None of these
8 The phase difference between the current and voltage at resonce is:
A. 0
B. π
C. -π
D. π/2
9 The A.M. transmission frequencies range from
A. 540 KHz to 1000 KHz
B. 540 Khz to 1600 KHz
C. 520 KHz TO 1600 KHz
D. 520 KHz TO 1400 KHz
10 The combined effect of resistance and reactance in circuit is called:
A. Impedance
B. Inductance
C. Capacitance
D. None 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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