Pat McBride wrote:
Ian;
I once learned a poem - Twinkle, twinkle, little star
Power = I sqared R
And I got beat about the head and shoulders by a math teacher, it finally
sank in that anything multiplied by zero is zero.
Soooooooooo, you must be talking about the power loss in a superconductive
circuit???? However, you'll agree, I hope, that there'll be a small loss in
power; otherwise we'd have the Perpetual Motion effect. There's going to be
a small loss in power, because I don't really think there'll ever be such a
thing as a perfect superconductor.
Superconductors are one of those odd things in physics that don't abide
by the usual rules. There is in fact NO significant loss of power from
any material when it is operating as a true superconductor. The only
limitation seems to be that superconductivity can only occur at
cryogenic temperatures.
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