Discuss Hey i need help with general things with Electrician stuff. in the Electrical Forum area at ElectriciansForums.net
ohms law is a simple relationship between 3 variables. if you know 2, you can calculate the third. just transpose when necessary. e.g a 240V supply applied to a 20 ohm resistor. V =IR, so I = V/R = 240/20 =12A
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