Minimum value of RL for which the diode is shorted is
RL+100RL×10=8⇒RL=400Ω
For maximum value of RL, current through diode is 10mA
So, iR=iRL+IZM
⇒1002=RL8+10×10−3⇒10×10−3=RL8⇒RL=800Ω
So, RLminRLmax=2
JEE Main 2022 — Physics Modern Physics
2022integermedium
A Zener of breakdown voltage VZ=8V and maximum Zener current, IZM=10mA is subjected to an input voltage Vi=10V with series resistance R=100Ω. In the given circuit RL represents the variable load resistance. The ratio of maximum and minimum value of RL is _____ .
Official previous-year question
Held on 28 Jun 2022 · Verified 6 Jul 2026.
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