Question
Download Solution PDFA reverse voltage of 10 V is applied across a silicon diode. The voltage across the depletion region is approximately
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe given figure represents a pn junction with an applied reverse voltage VR.
The electric field in the bulk p and n regions is normally very small, i.e. all of the applied voltage (electric field) appears across the depletion region.
So, the voltage across the depletion region will be close to 10 V.
If a positive voltage is applied to the p region with respect to the n region, the potential barrier is reduced and the applied voltage appears across the depletion region as shown:
VF = Applied Forward bias
Eapp = Electric field of the applied bias that is opposite to the junction electric field.
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