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When a P-type semiconductor is suitably joined to an N-type semiconductor, then resulting arrangement is called P-N junction or P-N junction diode
Depletion region: On account of difference in concentration of charge carrier in the two sections of P-N junction, the electrons from N-region diffuse by the junction into P-region and the hole from P region diffuse into N-region.
Because of diffusion, neutrality of both N and P-type semiconductor is disturbed, a layer of negative charged ions appear near the junction in the P-crystal and a layer of positive ions appears by the junction in N-crystal. This layer is known as depletion layer
In these diodes electron and hole pairs are formed by junction photoelectric effect. That is the covalent bonds are broken by the EM radiations absorbed by the electron in the V.B.
Why does it take longer to heat a bucket of water than a cup of water? Because there is extra water in a bucket than in a cup, and more energy has to be put into the bucket of
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Illustrate the current-voltage (I-V) characteristic curves if a junction diode in reverse and forward bias.
what are advantages and disadvantages for the six''s thermometer
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Q. Explain how Newton's ring can be obtained in the laboratory. Why Newton's rings are circular in shape? How the Newton's rings are used to find refractive index of liquid?
A spectrometer is required for creating pure spectrum of a source in laboratory and measuring of ? of material of prism and ? of a transparent liquid. It has of three parts: Col
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