Electronics 01
Why Is Electricity Transmitted at High Voltage? The Math
Why is electricity transmitted at high voltage? We work the I²R loss for a real 345 kV line, show why 1,100 kV is about the ceiling, and when HVDC wins.
power grid
Electronics 02
Why Is AC Power 60 Hz (or 50 Hz)? The Real Tradeoffs
60 Hz came from an 1890 Westinghouse study of engines, lamps and transformers, not Tesla. The physics of transformer size, skin effect and line length.
Electronics 03
Why Don't Birds Get Electrocuted on Power Lines?
A bird on a live wire feels about 4 millivolts and 4 microamps. We work the numbers, bust the 'not grounded' myth, and show when birds really do die.