A potential divider circuit is connected with a dc source of 20 V, a light emitting diode of glow in voltage 1.8 V and a zener

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UdaySingh · Answer 1 · 2024-04-26T12:08:56+0000

Correct answer is : 5

A potential divider circuit is connected with a dc source of 20 V,

\(\mathrm{PR}=20 \mathrm{~cm}\)

\(\mathrm{V}_{\mathrm{PQ}}=\frac{1}{4} \times \mathrm{R}_{\mathrm{PR}}\)

\(\ell_{\text {min }}(\mathrm{PQ})=\frac{1}{4} \times 20\)

\(=5 \mathrm{~cm}\)