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JEE Main 2024 (Online) 8th April Evening Shift
INTEGER+4 / -12024
A potential divider circuit is connected with a dc source of \(20 \mathrm{~V}\), a light emitting diode of glow in voltage \(1.8 \mathrm{~V}\) and a zener diode of breakdown voltage of \(3.2 \mathrm{~V}\). The length (PR) of the resistive wire is \(20 \mathrm{~cm}\). The minimum length of PQ to just glow the LED is _________ \(\mathrm{cm}\).
