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The graph given below represents the -  characteristics of a zener diode. Which part of the characteristics curve is most relevant for its operation as a voltage regulator?

a)

b)

c)

d)



Question ID - 150750 | SaraNextGen Top Answer

The graph given below represents the -  characteristics of a zener diode. Which part of the characteristics curve is most relevant for its operation as a voltage regulator?

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (d) -

(d)

When reverse bias is increased the electron field across the junction also increases. At some stage the electric field becomes so high that it breaks the covalent bonds creating electron-hole pairs. This mechanism is known as zener breakdown. In breakdown region for a long range of load ( ) the voltage remains the same though the current may be large.

127 votes


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