How to "Switch On" a Diode | Forward Bias Explained ⚡ #Shorts #physics

A diode isn't just a symbol—it's a voltage-controlled switch! Learn how Forward Bias makes it conduct in under 60 seconds.

Key Concept: Connect the battery's POSITIVE to the P-side and NEGATIVE to the N-side. This external voltage fights the internal barrier potential.

What Happens:
✅ Depletion Layer SHRINKS (width decreases)
✅ Barrier Potential REDUCES
✅ Majority Carriers get a "green light"
✅ Large Diffusion Current flows easily

Essential for understanding Rectifiers & every diode circuit. Perfect for Class 12 Physics (Ch 14) and competitive exams.

Next up: Reverse Bias – the "Off" state! Subscribe for 1-minute physics.

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