Explain the structure and working of pn junction diode under forward bias and reverse bias. , ,

Explain the working of p-n junction diode in forward and reverse biased mode.

Which one is in forward bias

P-N Junction|P-N Junction Diode Under Forward Bias

P-N Junction|P-N Junction Diode Under Forward Bias

Give three differences between forward bias and reverse bias.

(a). Explains briefly with the help of a circuit diagram how V-I characteristics of a p-n junction diode are obtainedin (i) forward bias, and (ii) reverse bias. (b). A photo diode is fabricated from a semiconductor with a band gap of 2.8 EV. Can it detect wave length of 6000. nm? Justify.