Question

joule coulomb${}^{-1}$ is same as ___________.

Answer 1

We have to find what $JouleCoulom{b}^{-1}$ is same as. Since $Joule$ is the S.I unit of work and $Coulomb$ is the S.I unit of electric charge. So, $JouleCoulom{b}^{-1}$ means work done per unit electric charge. But this is equal to potential difference between two points. Since S.I unit of potential difference is $Volt$. So, $JouleCoulom{b}^{-1}$ is same as $Volt$.