- #1

gaiussheh

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- TL;DR Summary
- Will an insulator conduct if a voltage greater than the bang gap is applied?

I got confused by the band theory. Does the band gap imply the voltage needed to conduct? This seems to be ridiculous. The band gap of a typical insulator is on the order of a few eV. Hence, if you give electrons 10 eV, they jump to the conduction band. But surely you can't turn an insulator into a conductor by simply applying a 10V voltage? Otherwise, most of the common things in real life will conduct.