"Grant" wrote in message ...
Only if one has "negative inductance".

Is that what a capacitor does / is / has?

No, the reactance is capacitive, but the equation isn't the same:

X_c = 1 / (jwC)
X_L = jwL

Negative inductance would have capacitive reactance (-j direction), but the magnitude would increase with frequency, the opposite of a capacitor. You could make some interesting filters with one of those, just as you can make interesting circuits with negative resistance.

Tim

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