Based on Ohm's law, how much current would you expect to run through a superconductor if the voltage across

Question

it were 100 volts? is this possible? What do you think would really happen?

Answer 1

not possible, you can't have any voltage greater than 0 volts.

edit, other answer is wrong, the resistance is zero, by any measurement.

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Answer 2

Superconductors have no resistance at all and so can support NO voltage difference. What this means is that you cannot induce any current in a superconductor on its own. To get a current to run through a superconductor it has to be part of a circuit that has a resistive element. In superconducting magnets this is done by heating a strand of superconductor called the weak link. Once curernt is injected, the heater is turned off, the link becomes superconducting and current flows with no voltage in perpetuity.

Answer 3

the curent would be the voltage divided by the resistance.  Superconductors have some resistance, less than an ohm but still some resistance.  If you have superconducting wire that has 1mOhm (that's milli) then you would wind up with 10 Amps.

Their a several labs working on this.  The most known in the states is Argonne National Laboratory outside of Chicago.  The latest developments were the ceramic superconductors.  The main problem is still how to fabricate the ceramic materials into useful forms that don't break when they are fired.