Thoughtful reader Raymond Laagel of Mulhouse, France sent a note with a proof of a Design Idea we published back in 2010. The DI was called Circuit measures capacitance or inductance, and it was by ...

This Design Idea shows how tocalculate the inductance of amultilayer air-core coil using only itsdimensions and resistance. If you knowthe dimensions and. Aspencore network. ... You can nowsquare both ...

The inductance and, as a result, the inductive reactance of a cable is a function of its geometry and physical relationship to other cables. Most engineers and cable manufacturers use very complex ...