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Semiconductor Electronics question

2018 · Q137
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Semiconductor Electronics question

2018 · Q137

NEETPhysicsSemiconductor ElectronicsMCQ+4 / −1
In a p-n junction diode, change in temperature due to heating
  1. A
    affects only reverse resistance
  2. B
    affects only forward resistance
  3. C
    does not affect resistance of p-n junction
  4. D
    affects the overall V - I characteristics of p-n junction
View written solutionFree

Correct answer: D

As a result of heating, temperature increases which generates large number of electron-hole pairs which lead to increase in conductivity. As
current increases I = I0(e−qvKT{e^{ - {{qv} \over {KT}}}}e−KTqv​), overall resistance of diode changes which affects forward and reversed biasing.

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