Statement I : $V-I$ characteristic of $p-n$ diode is same as that of any other conductor. \ Stateme

Question

Statement I : $V-I$ characteristic of $p-n$ diode is same as that of any other conductor. \ Statement II: $p-n$ diode behave as conductor at room temperature.

Professor PC Thomas Classes · Answer

(c) : The V-I characteristic of $p-n$ diode depends whether the junction is forward biased or reverse biased. This can be shown by graph between voltage and current. In the given graph, knee voltage is a voltage at which forward bias becomes greater than the potential barrier, the forward current increases almost linearly, whereas zener voltage is a voltage at which reverse current increases suddenly. From this graph, we can verify that $p-n$ diode characteristics are very different from that of conductor which obey's Ohm's law.