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

In modulation, low frequency signal is known as

Question # 2

The AC system is preferred to DC system because:

Question # 3

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

Question # 4

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

Question # 5

In A.C circuit of inductor which one is true

Question # 6

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

Question # 7

Power dissipation in A.C circuit is expressed as:

Question # 8

The sum of positive and negative peak value called.

Question # 9

The natural frequency of L.C circuit is equal to

Question # 10

The power factor of RL series circuit is.

Question # 11

SI unit of reactance is.

Question # 12

XL=

Question # 13

In three phase voltage across any two lines is about.

Question # 14

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

Question # 15

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

Question # 16

The unit of impedance is

Question # 17

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

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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 velocity of an oscillating charge as it moves to and fro along a wire is.
A. Changing
B. Constant
C. Infinite
D. zero
2 The electromagnetic spectrum contains
A. Radio waves
B. X-rays
C. Microwaves
D. All of these
3 In case of capacitor, the unit of reactance is
A. Farad
B. Ohm
C. Newton
D. All of these
4 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
5 when an inductor comes close to a metallic object, its inductance is.
A. Decreased
B. Increased
C. Becomes half
D. Becomes 4 times
6 The highest value reached by the voltage or current in one cycle is called.
A. Peak ot peak value
B. Peak value
C. Instantaneous value
D. Root mean square value
7 The most common source of an A.C. Voltage is.
A. Motor
B. Cell
C. Generator
D. Thermo couple
8 The combined effect of resistance and reactance is knows as.
A. Inductance
B. Conductance
C. Resistance
D. Impedance
9 SI unit of reactance is.
A. Ohm
B. Mho
C. Farad
D. Henry
10 The condition of resonance is:
A. XL = 1/2 Xc
B. XL = Xc
C. Xc = 4x2
D. None of above

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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

    20 Nov 2017

    aoa ....how to download it

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    zia

    28 Jun 2016

    thankx

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