Question: A copper wire 100 m long must experience a voltage drop of less than 1.5 V when a current of 2.5 A passes through it.

A copper wire 100 m long must experience a voltage drop of less than 1.5 V when a current of 2.5 A passes through it. Using the data in Table 18.1, compute the minimum diameter of thewire.

Electrical Conductivity |(2-m)-| Metal 6.8 x 107 6.0 x 107 4.3 x

Electrical Conductivity |(2-m)-| Metal 6.8 x 107 6.0 x 107 4.3 x 107 3.8 x 107 1.6 x 10 1.0 x 10' 0.94 x 107 0.6 x 10 0.2 x 107 Silver Copper Gold Aluminum Brass (70Cu-30Zn) Iron Platinum Plain carbon steel Stainless steel

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