Resistance and Voltage

Asked May 02 '17 at 20:56

Active May 02 '17 at 20:56

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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.

asked May 02 '17 at 20:56

user154844

2

V = IR only for linear devices. Diodes aren't linear. Plus, separate questions is preferred here. – Jon Custer May 02 '17 at 21:00
Yes, you need to focus on one question at a time. And, no, superconductors do not necessarily have zero resistance. – May 02 '17 at 21:23
The answers are here : https://physics.stackexchange.com/questions/62664/how-can-ohms-law-be-correct-if-superconductors-have-0-resistivity . – Zainab M May 02 '17 at 21:24
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Possible duplicate of How can Ohm's law be correct if superconductors have 0 resistivity? – Kyle Kanos May 03 '17 at 10:10

0 Answers0