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

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

Question # 2

SI unit of reactance is.

Question # 3

when an inductor comes close to a metallic object, its inductance is.

Question # 4

The AC system is preferred to DC system because:

Question # 5

At resonance frequency, the impedance of RLC series circuit is.

Question # 6

The velocity of an oscillating charge as it moves to and fro along a wire is.

Question # 7

Which consumes small power.

Question # 8

Vrms =

Question # 9

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

Question # 10

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

Question # 11

The condition of resonance is:

Question # 12

In three phase voltage across any two lines is about.

Question # 13

The wave form of alternating voltage is a

Question # 14

The power factor of RL series circuit is.

Question # 15

For electromagnetic waves, Maxwell generalized

Question # 16

Power dissipation in A.C circuit is expressed as:

Question # 17

The natural frequency of L.C circuit is equal to

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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 Basic circuit element in a D.C. circuits which controls the current and voltage is
A.
Resistor
B. Inductor
C.
Capisitor
D. Transistor
2 The reactance of inductor depends upon
A. L
D. All of the above
3 When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.
A. 100 Ohm
B. 10 Ohm
C. 1000 Ohm
D. 1 Ohm
4 In purely resistive A.C circuit, instantaneous value of voltage and current:
A. Current lags behind voltage
B. Current leads voltage by π/2
C. Both are in Phase
D. Voltage leads current by Pase θ=π/2
5 In three phase A.C supply coils are inclined at an angle of.
A. 0o
B. 90o
C. 120o
D. 80o
6 Electro magnetic waves emitted from radio antenna are.
A. Stationary
B. Longitudinal
C. Transvers
D. Both a and b
7 The flow of D.C current is opposed by
A. Resistor
B. Induction
C. Capacitor
D. All of these
8 The power factor of RL series circuit is.
A. 0
B. 1
C. Less then 1
D. More than one
9 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?
A. 4 times
B. 1/4 times
C. 8 times
D. 2 times
10 The circuit which compares the two voltages is.
A. LDR
B. Sensor
C. Comparator
D. Logic gate

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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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