help with physics?

Question

what is an equation for electrical work & how do you solve for it?

Answer 1

It depends on what you're given.
If you're given charges and radii, know the constant of permittivity
for your units, E0. (1/(4piE0))*((q1q2)/r^2)dr

Answer 2

Electric power P=U*I, where U is voltage on the terminals of a device and I is current though device; work done by power during time t is W=P*t; units being U – volts, I – amperes, P – watts, W – joules; no matter heater or electric motor or sonic generator or radio station!