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

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