- #1

Dr_Pill

- 41

- 0

I'm stuck with the electrostatics of the PN junction.

I just can't see why the electric field has to be negative in the depletion regio.

The two equations give positive values for the Electric field in the intervals, so how can it be negative??

In the equation for the n regio, there are two minus signs, so its positive, in the p-regio one minus sign but x is negative, so again positve.

This is driving me insane.

And why is the electric field negative in the n-regio, its positively charged.

I have also some questions about the potential difference across the regio, but let's explain this first :)