Suppose instead of using a 12-gauge (diameter = 2.05 mm)solid copper cable you made a hollow copper cable of outer diameter 2.59 mm (10-gauge)and inner diameter 1.29 mm (16-gauge).Calculate the length of hollow cable that would give the same resistance as 1 m of 12-gauge solid cable.Use $\rho$(Cu)= 1.7 $\times$ 10^-8 $\Omega$/m. A)0.402 m B)2.48 m C)0.833 m D)1.44 m E)1.20 m

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The Answer of Suppose instead of using a 12-gauge (diameter = 2.05 mm)solid copper cable you made a hollow copper cable of outer diameter 2.59 mm (10-gauge)and inner diameter 1.29 mm (16-gauge).Calculate the length of hollow cable that would give the same resistance as 1 m of 12-gauge solid cable.Use $\rho$(Cu)= 1.7 $\times$ 10^-8 $\Omega$/m. A)0.402 m B)2.48 m C)0.833 m D)1.44 m E)1.20 m

Suppose Instead of Using a 12-Gauge (Diameter = 2 ρ\rhoρ (Cu)= 17

Suppose Instead of Using a 12-Gauge (Diameter = 2 $\rho$ (Cu)= 17