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

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Question # 1

The peak to peak value of alternating voltage is

Question # 2

In three phase A.C supply coils are inclined at an angle of.

Question # 3

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

Question # 4

The inductive reactance of a coil is direction proportional to.

Question # 5

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

Question # 6

The main use of A.C is

Question # 7

In purely resistive A.C circuit, instantaneous value of voltage and current:

Question # 8

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

Question # 9

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 # 10

The resonance frequency is given by:

Question # 11

In A.C circuit through a capacitor which one is:

Question # 12

In frequency modulation which factor changed.

Question # 13

In modulation, low frequency signal is known as

Question # 14

In RLC circuit the energy is dissipated in

Question # 15

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

Question # 16

In metal detector, we use.

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 The effective value of any sinusoidal alternating current or voltage is
D. None of the above
2 The reactance is the ratio of
A. Vrms/Irms
B. Vrms x Irms
C. Irms/Vrms
D. Vmax x Vrms
3 Direct current can not flow through.
A. Inductor
B. Resistor
C. Transistor
D. Capacitor
4 If Io is the peak value of current, then its root mean square value is given by
B. 2 Io
C. Io
D. 0.7 Io
5 High frequency radio wave is called as
A. Fluctuate
B. Carrier wave
C. Matter wave
D. Mechanical wave
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 The Basic circuit element in a D.C. circuits which controls the current and voltage is
A.
Resistor
B. Inductor
C.
Capisitor
D. Transistor
8 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
9 The natural frequency of L.C circuit is equal to
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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