A zener diode works on the principle of_________(a) tunneling of charge carriers across the junction(b) thermionic emission(c) diffusion of charge carriers across the junction(d) hopping of charge carriers across the junctionI got this question by my school teacher while I was bunking the class.Enquiry is from Breakdown Diodes topic in chapter Semiconductor-Diode Characteristics of Electronic Devices & Circuits

A zener diode works on the principle of_________(a) tunneling of charg

1.	A zener diode works on the principle of_________(a) tunneling of charge carriers across the junction(b) thermionic emission(c) diffusion of charge carriers across the junction(d) hopping of charge carriers across the junctionI got this question by my school teacher while I was bunking the class.Enquiry is from Breakdown Diodes topic in chapter Semiconductor-Diode Characteristics of Electronic Devices & Circuits
Answer» Correct CHOICE is (a) tunneling of charge carriers across the junction The best I can EXPLAIN: Due to zener EFFECT in reverse BIAS under high electric field strength, electron quantum tunneling occurs. It’s a mechanical effect in which a tunneling current occurs through a barrier. They usually cannot move through that barrier.

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