Find the length of a copper wire 0.104 inch in diameter if it has a resistance of 3.1 ohms ( 1 mil = 0.001 inch). Carry the answer to two decimal places. $$\begin{aligned}
R = \frac { K L } { d ^ { 2 } } \quad \text { where } & R = \text { resistance in ohms } \
& L = \text { length in feet } \
& d = \text { diameter in mils } \
& K = 10.8 \text { (constant) }
\end{aligned}$$

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The Answer of Find the length of a copper wire 0.104 inch in diameter if it has a resistance of 3.1 ohms ( 1 mil = 0.001 inch). Carry the answer to two decimal places. $$\begin{aligned}
R = \frac { K L } { d ^ { 2 } } \quad \text { where } & R = \text { resistance in ohms } \
& L = \text { length in feet } \
& d = \text { diameter in mils } \
& K = 10.8 \text { (constant) }
\end{aligned}$$

Find the Length of a Copper Wire 0