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Explain about the Intrinsic breakdown:
It's because of the excitation of electrons into the conduction band across the energy gap under the condition of excessive voltage. Excited electrons can excite more electrons in turns, resulting in an avalanche of conducting electrons. Impurities in the dielectric can create additional energy levels which lie in the energy gap and can help in excitation of electrons into the conduction band.
4. (a) Explain the concept of (i) intrinsic, (ii) n-type, and (iii) p-type semiconductors with the aid of bond diagrams and band diagrams. (b) What is a hole? Using a mathematic
what is fehlings test and its reagent?
#question.which element has the highest oxidation state and why.
Oxidation Reduction Titrations The titrations based upon oxidation-reduction reactions are termed redox titrations. The chemical reactions proceed along with transfer of electr
Nebulisation techniques: The accuracy, precision and detection limits of flame AAS depend on how the analyte sample is introduced into the atomiser. We need to transfer a repr
Why does methyl ethanoate not give iodoform test while ethyl ethanoate does? Ans) Iodoform test for esters is the test given by its products on hydrolysis methyl ethanoate give
Q. What is Line graphs? The points on a line graph symbolize the intersection of data for two variables. The independent variable is contrived on the horizontal axis. The depen
what types of electrodes use in physical chemistry
Soaps and detergents Sodium and pottasium salts of fatty acids such as palmitic acid, stearic acid, oleic acid etc are called soaps, while detergents are ammonium or sulphonate
diagonal relationship between Li and Mg
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