Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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An Ideal Diode Should Pass a Current Freely in One Direction and Should Stop It Completely in the Opposite Direction. Which is Closer to Ideal-vacuum Diode Or A P-njunction Diode? - Physics

Short Note

An ideal diode should pass a current freely in one direction and should stop it completely in the opposite direction. Which is closer to ideal-vacuum diode or a p-njunction diode?

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Solution

It should be an ideal vacuum diode. When a pn junction diode is reverse biassed then a small current called reverse current flows across the diode.As the the p‒n junction diode allows some current in reverse biassed condition also so the given diode can not be a pn junction diode.

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APPEARS IN

HC Verma Class 11, Class 12 Concepts of Physics Vol. 2
Chapter 23 Semiconductors and Semiconductor Devices
Short Answers | Q 10 | Page 417
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