In case of p-n junction diode at high value of reverse bias,...

In case of $p-n$ junction diode at high value of reverse bias, current rises sharply. The value of reverse bias is called :
(a) cut off voltage
(b) inverse voltage
(c) zener voltage
(d) critical voltage

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Key Concepts

Zener Breakdown

A phenomenon occurring in heavily doped diodes where the breakdown happens through quantum mechanical tunneling of electrons at a precisely controlled voltage, leading to a sudden increase in reverse current. This voltage is often referred to as the Zener voltage.

Breakdown Voltage

The specific reverse bias voltage at which a diode begins to conduct significant current due to breakdown mechanisms. At this voltage, the electric field in the depletion region becomes strong enough to cause either Zener or avalanche breakdown.

PN Junction Diode

A semiconductor device made by joining a p-type and an n-type material, which forms a junction that conducts current primarily in one direction under forward bias and blocks current under reverse bias until certain conditions are met.

Reverse Bias

A mode of operation where the diode's p-side is connected to a lower potential than the n-side, resulting in the widening of the depletion region and normally minimal current flow until a critical voltage is reached.

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