Electronics 01
Why Do Transformers Hum? It's 100 or 120 Hz, Not 50 or 60
Transformer hum comes from magnetostriction: the core stretches about 2 micrometres per metre twice every cycle. Why 100/120 Hz, and what makes it louder.
Transformer hum comes from magnetostriction: the core stretches about 2 micrometres per metre twice every cycle. Why 100/120 Hz, and what makes it louder.