Q130 / 180 · NEET 2018 · Physics

In a $p - n$ junction diode, change in temperature due to heating

A
does not affect resistance of p-n junction
B
affects only forward resistance
C
affects only reverse resistance
Correct answer
D
affects the overall V-I characteristics of p-n junction

Solution

Due to heating, the number of electron-hole pairs will increase, so overall resistance of diode will change. Due to which forward and reverse biasing both are changed. Hence, in a PN junction diode, change in temperature due to heating affects the overall V-I characteristics of PN junction

Hence, the correct answer is option: 'D'.

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In a p-n junction diode, change in temperature due to heating

Solution

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In a $p - n$ junction diode, change in temperature due to heating