If I double the thickness of a wire, by what factor does resistance decrease?

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Would the resistance decrease by 1/4 or 1/2?

Thank you! :)

Posted Tue 29th January, 2013 @ 09:50 by Tilly - Team GR

2 Answers

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I think it's 1/4 because if you increase the thickness by 2, then you are increasing the radius by a factor of 4.

Answered Tue 29th January, 2013 @ 15:25 by Joanne
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I thought it was. Thank you.

Answered Tue 29th January, 2013 @ 16:09 by Tilly - Team GR