Grace Vulpes Alopex

um, so

how do you calculate the current flowing through a superconductor?

current is equal to voltage divided by resistance, but... superconductors have no resistance... so...

voltage divided by zero?

Jul 2 at 6:57pmWeb
Show threadshiftingvoidJul 2
@pharmafemboy Well since the resistance is equal to zero, the voltage is also equal to zero so you have the entire current input at the output with no loss
Show threadPixdigitJul 3

@pharmafemboy Two things:
Ohm's law I stated a U=RI. As R is zero the voltage across a superconductor is also always zero. Hence the current inside a superconductor is independent of voltage.

Secondly: critical current. At this current the superconducting property ceases. Meaning you can induce a current in a superconductor whose magnetic field will then exactly oppose the applied field unless you reach the critical current.