p-n junction diode under reverse biasपश्चदिशिक बायस में p-n संधि डायोडp-n junction diode under reverse bias
NCERT Fig 14.15 · Class 12 Physics · Chapter 14 · interactive diagram
Read Chapter 14 with this diagramइस डायग्राम के साथ अध्याय 14 पढ़ेंIs diagram ke saath Ch 14 padhiyeAll Physics diagramsसभी भौतिकी डायग्रामSaare Physics diagrams
Parts and what they mean
- p-side → battery − (p-ओर → बैटरी −) — Reverse bias: the p-side is joined to the negative terminal.
- n-side → battery + (n-ओर → बैटरी +) — The n-side is joined to the positive terminal.
- Battery (reverse) (बैटरी (पश्चदिशिक)) — Its voltage is in the same direction as the barrier potential, so the barrier height becomes V0 + V.
- Depletion region — wider (अवक्षय क्षेत्र — चौड़ा) — Reverse bias widens the depletion region.
- Fixed ions (स्थिर आयन) — More ions are uncovered as majority carriers are pulled away.
- (a) Circuit ((a) परिपथ) — Diode under reverse bias.
- (b) Barrier potential ((b) विभव प्राचीर) — Potential across the junction with and without reverse bias.
- No bias: V0 (बिना बायस: V0) — Equilibrium barrier.
- Reverse bias: V0 + V (पश्चदिशिक बायस: V0 + V) — Higher barrier: diffusion of electrons n → p and holes p → n is suppressed enormously. Only the small drift of minority carriers (µA) remains.
- Holes (होल) — Pulled away from the junction towards the negative terminal.
- Electrons (इलेक्ट्रॉन) — Pulled away from the junction towards the positive terminal.
Original diagram drawn by Simple Learning Hub, based on NCERT Fig 14.15. Report a mistake