Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
UPGRADE TO PRO
APPS
TOUR
Sign in
(permeability of free space)*(1000 MW)*c^2/(2*pi*(45 ft)^2*2*pi*(60 Hz)*(765 kV))
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random