LogM p nya. 40 m punya luas penampang 0,0331 cm2 brpkah hambatan logam ini jika hambatan jenisnya 7,7x10-8
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A 0,0331 cm^2 -> 0,0331x10^-4m^2
p = 7,7x10^-8
R..?
R = pl/A
R = 7,7x10^-8 . 40 / 0,0331x10^-4
R = 308x10^-4 / 0,0331
R = 308x10^-4 / 331x10^-4
R = 308/331
R = 0,93 ohm