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

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

Question # 2

A resistance frequency the impedance of RLC parallel circuit is.

Question # 3

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

Question # 4

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

Question # 5

In Pakistan the frequency of A.C. supply is.

Question # 6

The main use of A.C is

Question # 7

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

Question # 8

Choke consumes extremely small

Question # 9

Unit of impedance is:

Question # 10

Xc =

Question # 11

The effective value of any sinusoidal alternating current or voltage is

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

XL=

Question # 16

The device which allows only the flow of D.C. is.

Question # 17

The value of capacitive reactance is given by

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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 natural frequency of L.C circuit is equal to
2 An A.C. voltmeter reads 220 V, its peak value will be
A. 225 V
B. 240 V
C. 311.12 V
D. 300 V
3 In LR circiut which one of the following statements is correct?
A. L and R opposes each other
B. R value increases with frequency
C. The inductive reactance increases with frequency
D. The inductive reactance decreases with frequency
4 At high frequency, the current through a capacitor is
A. Small
B. Infinity
C. Zero
D. Large
5 100 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
6 Power dissipated in a pure inductor is.
A. Large
B. Small
C. Infinite
D. Zero
7 The resonance frequency is given by:
A. fr = 2π√LC
B. fr = 1/2πLC
C. fr = 1/ 2π√LC
D. f1 = 1/ 2πC√L
8 The electromagnetic spectrum contains
A. Radio waves
B. X-rays
C. Microwaves
D. All of these
9 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
10 The mean value of A.C. in a cycle is.
A. 1
B. 0
C. I2
D. Nil

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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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