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

Question

The graph given below represents the $ I-V $ characteristics of a zener diode. Which part of the characteristics curve is most relevant for its operation as a voltage regulator?, $ \mathrm{ab} $, bc, $ \mathrm{cd} $, de

MARKS App · Accepted Answer

Zener diode is used as a voltage regulator in breakdown region. In the voltage regulator, the voltage should not change even after the change in current. So, in the I - V characteristic of the zener diode in reverse bias, the d - e portion will be most relevant to the voltage regulator.

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