billc@prism.UUCP (06/02/87)
Does anyone know what the equivalent equation for Ohm's Law is in a superconducting situation? I know we have no resistance, but there must be some sort of relationship between current and power. It seems to me that the ideal would be to have relatively low current that somehow packs the watts, if we're talking about power storage, and the opposite situation if we want to exploit the electromagnetic properties. ---- Bill Callahan billc@mirror.TMC.COM {mit-eddie, ihnp4, wjh12, cca, cbosgd, seismo}!mirror!billc Mirror Systems 2067 Massachusetts Avenue, Cambridge, MA 02140 Telephone: 617-gro; wlib
ken@rochester.arpa (Ken Yap) (06/05/87)
Ohm's law relates current, resistance and dissipative power. However, it is only part of the story. The energy equation includes other paths for the flow of energy, such as radiation. Take for example, a LED. This is important if the EM field is used to do some work, for example a radio transmitter or an electromagnet. The most general treatment would have to go to Maxwell's equations. Ken