The Fig shows the reverse bias diode. The reverse voltage across the diode VR while the current flowing is reverse current ‘R flowing due to minority char carriers. The graph of ‘R against VR is called reverse characteristics of a diode.
As reverse voltage is an increased, reverse current increase initially but after
a certain voltage, the current remains constant equal to reverse saturation current 10 though reverse voltage is increased.
The point A where breakdown occurs and reverse current increase rapidly is called knee of the reverse characteristics.
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