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Diodes and Applications - Technical MCQs

Q1:

The voltage where current may start to flow in a reverse-biased pn junction is called the

A breakdown voltage

B barrier potential

C forward voltage

D biasing voltage

ANS:A - breakdown voltage

At normal voltage, diode in reverse biased acts as a open circuit. But when the supply voltage is so high jxn barrier of a diode break such that diode allows current to flow and the voltage cause this, is called breakdown voltage.