draw V-I characteristic of a p-n junc. diode in a> forward bias
b> reverse bias
V-I characteristic for diode
V =(+)ve shows the forward bias ((+)ve x-axis)
V =(-)ve shows the reverse bias((-)ve x-axis)
This is for silicon diode.
Here, knee voltage = 0.7V after current increase exponentially.
break down voltage = 88 V .