^Current in diode

^Current in diode

In forward bias strong diffusion current plus a weak & nearly constant drift current, so that a net current of the order of few mA. & is found to increase with the increase in forward bias voltage.

In reverse bias strong drift current plus a weak & diffusion current so that a net current of the order of few mA flows & is found to be voltage independent upto a critical reverse bias voltage, known as breakdown voltage (Vbr).