Practical Demo - How Diode Works in Circuit
Learn how a 1N4007 silicon diode works in a real electronic circuit using a practical breadboard experiment. In this beginner-friendly electronics tutorial, we demonstrate forward bias, reverse bias, current flow, voltage drop, LED behavior, and multimeter measurements step by step.
This video explains:
• What happens when a diode is forward biased
• What happens in reverse bias mode
• How current flows in a closed-loop circuit
• Why the LED turns ON and OFF
• How to measure voltage across diode, resistor, and LED
• How to measure current using a digital multimeter
• Understanding diode voltage drop (~0.5V)
• Series circuit current behavior
• Breadboard circuit connections explained
Practical Concepts Covered:
✔ 1N4007 silicon diode working
✔ Diode acting like a switch
✔ Forward bias conduction
✔ Reverse bias blocking
✔ LED circuit demonstration
✔ Measuring current in series circuit
✔ Measuring DC voltage across components
✔ Understanding voltage distribution in a circuit
Components Used:
• 1N4007 Silicon Diode
• LED
• Resistor
• Breadboard
• Digital Multimeter (DMM)
• Regulated DC Power Supply
This tutorial is useful for:
✅ Electronics beginners
✅ Engineering students
✅ DIY electronics learners
✅ STEM education
✅ Electrical and electronics practical learning
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