Wolfram Allpha Ohm's Law

Wolfram Allpha Ohm's Law

How much resistance will there be in that wire to supply your 80-amp, 220-volt outlet? 2.75 ohms. Makes doing your physics homework easier, huh?

May 5, 2009 5:21 PM PDT

Photo by: Stephen Shankland/CNET

| Caption by: Stephen Shankland

 

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