Question:
The knee voltage of a p-n junction diode is 0.8 V and the with of the depletion layer is 2 $\mu m$, the electric field in the depletion layer is
The knee voltage of a p-n junction diode is 0.8 V and the with of the depletion layer is 2 $\mu m$, the electric field in the depletion layer is
Updated On: Jul 7, 2022
- 4 MV/m
- 0.4 MV/m
- 4 kV/m
- 0.4 kV/m
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The Correct Option is B
Solution and Explanation
$E=\frac{\Delta V}{\Delta r}=\frac{0.8}{2 \times 10^{-6}}$
$=0.4 \,MV / m$
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Concepts Used:
P-n Junction
A P-N junction is an interface or a boundary between two semiconductor material types, namely the p-type and the n-type, inside a semiconductor.
Biasing conditions for the p-n Junction Diode:
in p-n junction diode two operating regions are there:
- P-type
- N-type
There are three biasing conditions for p-n junction diode are as follows:
- Zero bias: When there is no external voltage applied to the p-n junction diode.
- Forward bias: P-type is connected to positive terminal of the voltage potential while n-type is connected to the negative terminal.
- Reverse bias: P-type is connected to negative terminal of the voltage potential while n-type is connected to the positive terminal.