Respostas

2013-07-29T19:00:27-03:00
R=p*L/A

Area = 3*(6,5*10^-2)²

Area = 3*42,25*10^-4

Area = 126,75*10^-4m²


R = L/A

12 = L / 126,75*10^-4

L = 12*126,75*10^-4

L = 1521 * 10^-4

L = 0,1521 Ohms

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L ~= 0,15 Ohms (aproximadamente)
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