P-N Junction Diode A PN junction diode works by forming a depletion region where electrons and holes neutralize each other ⚡. In forward bias (positive to P-side, negative to N-side), this region shrinks, allowing majority charge carriers to flow — and current starts flowing ➡️. In reverse bias, the region widens, blocking the flow, so the diode prevents conduction ✋. It's a simple yet powerful concept behind many electronic devices! | Fadhel Mahdi