By what other name is the unit joule/coulomb called?

Question

Philoid · Accepted Answer

1 V is the potential difference between any two points that will impart an energy equal to 1 Joule per 1 coulomb of charge that passes through it. In other words,
$V = \frac{Potnetial energy}{Charge}$

or

$1 V = \frac{1 J}{1C}$