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 most common source of an A.C. Voltage is.

Question # 2

The power factor of RL series circuit is.

Question # 3

The unit of impedance is

Question # 4

The electromagnetic spectrum contains

Question # 5

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

Question # 6

In frequency modulation which factor changed.

Question # 7

An in cudutor may store energy in

Question # 8

In A.C circuit of inductor which one is true

Question # 9

In three phase voltage across any two lines is about.

Question # 10

Unit of impedance is:

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

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

Question # 13

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

Question # 14

The AC system is preferred to DC system because:

Question # 15

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

Question # 16

The circuit which compares the two voltages is.

Question # 17

In chopke coil the resistance XL an resistance R are:

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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 In three phase voltage across any two lines is about.
A. 220 V
B. 230 V
C. 400 V
D. 430 V
2 The inductive reactance of a coil is direction proportional to.
A. Inductance
B. Resistance
C. Frequency of A.C.
D. Both frequency of A.C. and inductance
3 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
4 The basic circuit element in A.C. circuit which controls current.
A. Resistor only
B. Capacitor only
C. Inductor only
D. All of these
5 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)
6 The value of capacitive reactance is given by
A. Xc = VI
B. xc= 1/wc or xc= wL
C. xc= 1*wc or xc=Lw
D. All of above
7 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
8 During each cycle A.C. voltage reaches a peak value.
A. Once
B. Twice
C. Thrice
D. Four time
9 In pure capacitor A.C. circuit, the current I and charge q are.
A. In phase
B. Out of phase
C. Parallel to each other
D. None of above
10 In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.
A. Maximum
B. Minimum
C. Zero
D. Negative

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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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