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

Impedance is denoted by:

Question # 2

In modulation, low frequency signal is known as

Question # 3

Vrms =

Question # 4

The AC system is preferred to DC system because:

Question # 5

The inductive reactance of a coil is direction proportional to.

Question # 6

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

Question # 7

In Pakistan the frequency of A.C. supply is.

Question # 8

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

Question # 9

In case of capacitor, the unit of reactance is

Question # 10

The reactance of inductor depends upon

Question # 11

Electro magnetic waves emitted from radio antenna are.

Question # 12

The unit of impedance is

Question # 13

In metal detector, we use.

Question # 14

X1is low for low frequency Fy but Xc is.

Question # 15

The value of capacitive reactance is given by

Question # 16

An electromagnetic wave goes from air to glass which of the following does not change?

Question # 17

The Basic circuit element in a D.C. circuits which controls the current and 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 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
2 In a pure inductive A.C. circuit the current.
A. Lags behind voltage by 90 o
B. Leads the voltage by 90 o
C. In phase with voltage
D. Leads the voltage by 270 o
3 In three phase A.C. generator the phase difference between each pair of coil is.
A. 45o
B. 90o
C. 120o
D. 60o
4 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
5 The unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
6 In modulation, low frequency signal is known as
A. Carrier wave
B. fluctuated signal
C. Modulated carrier signal
D. Modulation signal
7 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil
8 In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.
A. 90o
B. 270o
C. 0o
D. 180o
9 In chopke coil the resistance XL an resistance R are:
A. XL=R
B. XL<<R
C. XL>>R
D. XL=
10 At high frequency the value of reactance of capacitor will be.
A. Small
B. Zero
C. Large
D. Infinite

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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

    20 Nov 2017

    aoa ....how to download it

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  • zia

    zia

    28 Jun 2016

    thankx

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