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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MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 16 Online MCQ's Test"

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Physics FSC Part 2 Chapter 16 Online MCQ's Test

00:00
Question # 1

Electron vibrating 94,000 times each second will produce radio waves of frequency.

Question # 2

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 # 3

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

Question # 4

When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.

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

Question # 7

In RLC circuit the energy is dissipated in

Question # 8

In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.

Question # 9

The wave form of alternating voltage is a

Question # 10

The power factor of RL series circuit is.

Question # 11

In three phase A.C. generator the phase difference between each pair of coil is.

Question # 12

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

Question # 13

Phase difference between V and I of an A.C through resistor is.

Question # 14

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

Question # 15

The circuit in which current and voltage are in phase, the power factor is:

Question # 16

At resonance, the behavior of R-L-C series circuit is.

Question # 17

The natural frequency of L.C circuit is equal to

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16th Chapter

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 frequency modulation, the amplitude of carrier waves is
A. Increases
B. Remains constant
C. Decreases
D. None of these
2 Xc =
A. 1/2πfc
B. 2πfc
C. 2π/fc
D. fc/2π
3 The peak value of alternating current is 5√2 A. The mean square value of current will be:
A. 5A
B. 2.5A
C. 5√2A
D. 52
4 Power dissipation is a pure inductive or in a pure capacitance circuit is:
A. 106
B. 0
C. 10
D. Maximum
5 The slope of q-t curve at any instant of time gives.
A. Voltage
B. Current
C. Charge
D. Botha a and b
6 The wave form of alternating voltage is a
A. Cotangent curve
B. Cosine curve
C. Sine curve
D. Tangent curve
7 Radio frequency choke is
A. Iron cored
B. Air Cored
C. Air as well as iron cored
D. None of these
8 Which consumes small power.
A. Inductor
B. Resistor
C. Motor
D. All of these
9 100 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
10 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

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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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