Self Inductance Concept

Demonstrations in Self Inductance

Ruhmkorff induction coil on wooden base with large cylindrical secondary coil between black metal supports, mechanical vibrator assembly at right, discharge terminals on top showing small blue spark, and Xantrex DC power supply reading approximately 9.7 V and 0.8 A
Safety

Ruhmkorff Induction Coil

Demonstrates how mechanical interruption of DC current produces high-voltage pulses through electromagnetic induction. Students see why transformers require changing current — steady DC produces no induced EMF — and observe …