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3 July, 22:31

A 1.5 m wire carries a 9A current when a potential difference of 84 v is applied. what is the resistance of the wire

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  1. 3 July, 22:35
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    Ohm's law states that I=V/R (Current=volts divided by resistance). Since we're looking for resistance, we'll rewrite it as R=V/I. Then just plug in the numbers; R=84/9, R = 9 1/3 or 28/3. The resistance of the wire is 9.33 ... or 9 1/3 ohm's, depending on how you wanna write it.
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