# Answer to Question #13479 in Electromagnetism for Shawn

Question #13479

what is the current in a copper wire that has a resistance of 3 ohms and is connected to a 12 volt electric source?

Expert's answer

Let's apply the Ohm's law:

I = U/R = 12V/3Ω = 4 A.

I = U/R = 12V/3Ω = 4 A.

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