CBSE 12th Physics Term 2: Top 2 Marks Imp Questions With Answer
In this post I have provided CBSE Class 12 Term 2 Physics 2 Marks Important Questions with answer.
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CBSE 10th, 12th Term 2 Admit Card 2022 Released
New Delhi: CBSE 10th, 12th Term 2 Admit Card 2022 Important updates for the candidates who are preparing for CBSE Board 10th, 12th Term 2 examinations. The Central Board of Secondary Education (CBSE) has released the admit cards of the students for appearing in the Term 2 examinations to be conducted for the Secondary and
Solar Cell
Solar cell is a PN junction diode, which converts Solar energy into electrical energy. Its symbol is- Construction It consist of silicons or Gallium-Arsenide PN junction diode packed in a glass window on the top. The n-region has small thickness and p-region has large thickness. n-region made thin, So that light falling on the solar
Photodiode
A photodiode is a special type of junction diode used for convert light energy into electrical energy or detecting optical signals. It is a reverse biased PN junction made from a photosensitive materials. In photodiode, current careers are generated by photons through photo excitation. Its symbol is- Construction Photo diode fabricated with a transparent cover
LED: Light Emitting Diode
It is heavily dopped PN junction diode which converts electrical energy into light energy. This diode emits spontaneous radiation under forward biasing. Its symbol is- Working When PN junction is forward biased, electrons and holes move toward opposite sides of the junction through it. Therefore, there are excess minority careers on the either side of
Optoelectronic Junction Devices
Semiconductor diode in which carriers are generated by photons i.e photo excitation, such devices are known as optoelectronic devices. These devices are- (I) Light Emitting Diode (LED) (II) Photodiode (III) Solar Cell Also Read: CBSE Class 12 Physics Chapter-14 (Semiconductor and Electronic Devices) All Topics
Zener Diode
Special Purpose P-N Junction Diode (Zener Diode) A Junction diode specially designed to operate only in the reverse breakdown region continuously without getting damaged is called zener diode. Zener diode with different breakdown voltages can be obtained by changing the doping concentrations of p and n side which in terms change the width of depletion
CBSE Class 12 Geography Term 2 Most Imp Questions
In this post I have provided CBSE class 12 Geography Term- 2 Most Important 3 and 5 Marks Questions with answers for board exam 2022.
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CBSE 10th Maths Term 2 2022: Important 2 Marks Questions With Solution
Chapter-10: Circles Que 1. Prove that the line segments joining the points of contact of two parallel tangents is a diameter of the circle. Ans 1. Consider the circle with center at O PQ & RS are two parallel tangents to it touching at A and B respectively. Join OA and OB Now OA perpendicular to OQ (∴ radius
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Filter Circuit
In order to get the study DC output from the pulsating voltage, normally a capacitor is connected to the output terminals. An inductor can also be used in series for the same purpose.