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

For electromagnetic waves, Maxwell generalized

Question # 2

At high frequency the value of reactance of capacitor will be.

Question # 3

The unit of impedance is.

Question # 4

Impedance is denoted by:

Question # 5

The natural frequency of L.C circuit is equal to

Question # 6

In a pure inductive A.C. circuit the current.

Question # 7

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

Question # 8

High frequency radio wave is called as

Question # 9

The phase difference between the current and voltage at resonce is:

Question # 10

XL=

Question # 11

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

Question # 12

The AC system is preferred to DC system because:

Question # 13

An alternating quantity (voltage or current) is completely known if we know its:

Question # 14

The inductive reactance of a coil is direction proportional to.

Question # 15

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

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

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

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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 unit of impedance is
A. Farad
B. Henry
C. Tesla
D. Ohm
2 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above
3 The combined effect of resistance and reactance is knows as.
A. Inductance
B. Conductance
C. Resistance
D. Impedance
4 100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.
A. 30.8 Ohm
B. 31.8 Ohm
C. 34.8 Ohm
D. 40 Ohm
5 In frequency modulation, the amplitude of carrier waves is
A. Increases
B. Remains constant
C. Decreases
D. None of these
6 Choke consumes extremely small
A. Current
B. Charge
C. Power
D. Potential
7 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
8 In LR circiut which one of the following statements is correct?
A. L and R opposes each other
B. R value increases with frequency
C. The inductive reactance increases with frequency
D. The inductive reactance decreases with frequency
9 An alternating quantity (voltage or current) is completely known if we know its:
A. Maximum
B. Frequency and phase
C. Effective value
D. Both (a) & (b)
10 The sum of positive and negative peak value called.
A. R.M.S. value
B. P-P value
C. Peak value
D. Average value

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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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