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 main use of A.C is

Question # 2

In metal detector, we use.

Question # 3

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

Question # 4

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

Question # 5

The unit of impedance is.

Question # 6

The internal resistance of a capacitor is called:

Question # 7

The unit of impedance is

Question # 8

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

Question # 9

when an inductor comes close to a metallic object, its inductance is.

Question # 10

The combined effect of resistance and reactance is knows as.

Question # 11

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 # 12

Which consumes small power.

Question # 13

At resonance frequency, the impedance of RLC series circuit is.

Question # 14

The inductive reactance of a coil is direction proportional to.

Question # 15

Power dissipation in A.C circuit is expressed as:

Question # 16

The reactance is the ratio of

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 velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
2 During each cycle A.C. voltage reaches a peak value.
A. Once
B. Twice
C. Thrice
D. Four time
3 The main use of A.C is
A. Minimum line losses
B. Long distance transmission
C. Stepping up to required voltage only
D. Steeping down to required voltage only
4 SI unit of reactance is.
A. Ohm
B. Mho
C. Farad
D. Henry
5 The circuit in which current and voltage are in phase, the power factor is:
A. Zero
B. 1
C. -1
D. 2
6 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple
7 In case of capacitor, the unit of reactance is
A. Farad
B. Ohm
C. Newton
D. All of these
8 In frequency modulation which factor changed.
A. Amplitude of charge carriers
B. Frequency of charge carriers
C. Amplitude of signal
D. Frequency of signal
9 An electromagnetic wave goes from air to glass which of the following does not change?
A. Radio waves
B. X-rays
C. Ultra violet radiation
D. Ultra sond waves
10 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

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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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