Question

What is diode and how it works?

Answer 1

Answer:

A Zener diode is a special type of diode designed to reliably allow current to flow "backwards" when a certain set reverse voltage, known as the Zener voltage, is reached. Zener diodes are manufactured with a great variety of Zener voltages and some are even variable.

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Answer 2

Answer:

• A diode is a semiconductor device that essentially acts as a one-way switch for current. It allows current to flow easily in one direction, but severely restricts current from flowing in the opposite direction. ... When a diode is reverse-biased, it acts as an insulator and does not permit current to flow.

• When a diode allows current flow, it is forward-biased. When a diode is reverse-biased, it acts as an insulator and does not permit current to flow. ... A digital multimeter's diode test diode produces a small voltage between the test leads enough to forward-bias a diode junction. Normal voltage drop is 0.5 V to 0.8 V.

Explanation:

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