# Resistance and Voltage [closed]

I understand that superconductors have zero resistance, but with zero resistance there should be no voltage right? because V=IR

Also, why do diodes have such high resistance but no voltage in the backward bias. Shouldn't be proportional because again V=IR?

Thanks.

## closed as too broad by Jon Custer, ZeroTheHero, Yashas, Kyle Kanos, FraSchelleMay 3 '17 at 15:57

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