Q. What is the barrier potential of a silicon diode at room temperature?

A
0.3V
B
0.7V
C
1V
D
2m V per degree celcius
Solution:

The potential barrier in the pn junction is the barrier which does not allow charge flow across the junction normally. … This resistance to the flow of charge is known as barrier potential. Barrier potential of a silicon diode at room temperature is 0.7V. Barrier potential of a germanium diode is 0.3V.

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