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 expression P = VI hold only when current and voltage are.

Question # 2

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

Question # 3

The Basic circuit element in a D.C. circuits which controls the current and voltage is

Question # 4

An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately

Question # 5

The inductive reactance of a coil is direction proportional to.

Question # 6

The reactance of inductor depends upon

Question # 7

At high frequency, the current through a capacitor is

Question # 8

The internal resistance of a capacitor is called:

Question # 9

Average value of current and voltage over a complete cycle is.

Question # 10

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

Question # 11

During each cycle A.C. voltage reaches a peak value.

Question # 12

In frequency modulation, the amplitude of carrier waves is

Question # 13

An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage is:

Question # 14

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

Question # 15

The phase angle of a series RLC circult at resonant frequency is

Question # 16

The electromagnetic spectrum contains

Question # 17

In Pakistan the frequency of A.C. supply 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 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
2 Average value of current and voltage over a complete cycle is.
A. Positive
B. Negative
C. Zero
D. Infinite
3 In AC system we generate sine wave form because:
A. It san be easily draw
B. It produces least disturbance in electrical circuits
C. It is nature standard
D. Other waves cannot be produced easily
4 If Vrms be the root mean square value of emf then its peak to peak value is given by
5 Main reason for world wide use of A.C. is
A. It is cheaper
B. Transmitted
C. Botha a and b
D. Reaches in short time
6 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
7 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple
8 In frequency modulation, the amplitude of carrier waves is
A. Increases
B. Remains constant
C. Decreases
D. None of these
9 In metal detector, we use.
A. L-C circuit
B. R-L circuit
C. R-C circuit
D. RLC series circuit
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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