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

Radio frequency choke is

Question # 2

In frequency modulation, the amplitude of carrier waves is

Question # 3

The unit of impedance is

Question # 4

An A.C. voltmeter reads 220 V, its peak value will be

Question # 5

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

Question # 6

In three phase voltage across any two lines is about.

Question # 7

An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately

Question # 8

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

Question # 9

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

Question # 10

The peak to peak value of alternating voltage is

Question # 11

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

Question # 12

The reactance is the ratio of

Question # 13

In Series resonance circuit the impedance of circuit art resonance frequency, is

Question # 14

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

Question # 15

The power factor of RL series circuit is.

Question # 16

The sum of positive and negative peak value called.

Question # 17

XL=

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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 SI unit of reactance is.
A. Ohm
B. Mho
C. Farad
D. Henry
2 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
3 when an inductor comes close to a metallic object, its inductance is.
A. Decreased
B. Increased
C. Becomes half
D. Becomes 4 times
4 An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage is:
A. 50 Hz
B. 25Hz
C. 100 Hz
D. 75 Hz
5 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
6 The circuit which compares the two voltages is.
A. LDR
B. Sensor
C. Comparator
D. Logic gate
7 Power dissipated in a pure inductor is.
A. Large
B. Small
C. Infinite
D. Zero
8 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
9 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil
10 Vrms =
A. 0.7V
B.
0.07V
C. 0.007V
D. 0.75V

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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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