[Bill]

Mike Hanson wrote:
Brian Running wrote:
Heat is about current.
Actually, no. Drop a bazillion amps through 0 ohms and, no poof!
because no heat.
Actually, yes. Take a conductor with a high resistance, and put no
current through it, and poof! No heat.

Actually, a bazillion amps *won't go* though 0 ohms because the door is
shut. However, I'm sure one can Google up the formula for heat
generated by electrical current. Or Power.

0 ohms is just that, a superconductor, and researchers have put millions
of amps through superconducting rings to get huge magnetic fields. The
problem is that if they heat up enough to have **any** resistance the
current can cause so much heat the now non-superconductor can explode
from the stored energy.
Power is current squared times resistance.
Bill Baka