Physics ICS Part 2 Chapter 18 Online MCQ's Test With Answers

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Physics ICS Part 2 Chapter 18 Online MCQ's Test

Sr. # Questions Answers Choice
1 Light emitting diodes are made from semiconductors. Silicon Germanium Carbon Gallium arsenide
2 In photovoltaic cell, current is directly proportional to. Wavelength of light Intensity of light Energy Frequency of light
3 Conversation of only one half of A.C. into D.C. is called. Half wave amplification Wave amplification Half wave electrification Half wave rectification
4 Rectification is the process of converting. D.C. into A.C. A.C. in to D.C. Low signal to high High signal to low
5 A.C. can be converted into D.C. by An oscillator Detector An amplifier Rectifier
6 Pulsating output of full wave rectifier can be made smooth by using circuit called. Filter Amplifier Resistor Transistor
7 The output voltage of a rectifier is. Smooth Pulsating Alternating Per featly direct
8 For rectification we use. Transformer Diode Choke Generator
9 During negative half cycle of A.c then p-n junction offers. High resistance Low resistance No resistance All of these
10 In full wave rectification number of diodes required are equal to. 2 3 4 5
11 Minimum number of semi conductor diodes required for full wave rectification are. 1 2 3 4
12 _______ is the building block of every electronic circuit. Semi conductor diode Resistor Capacitor Amplifier
13 A diode characteristics curve is a plot between Current and resistance Voltage and time Voltage and current Current and time
14 Depletion region carries. -ve charge +ve charge Ions No charge
15 The ratio of potential barriers of Ge to Si at room temperatrue is. 7:3 1:3 2:5 3:7
16 A PN junction can not be sued a. Rectifier Amplifier Detector LED
17 A diode characteristic curve is a plot between Current and time Voltage and time Voltage and current Forward voltage and reverse voltage
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