Question

on the wire. Solution We are given the resistance R of the wire d-0.3 mm = 3 x 10 m. and the length to Therefore, from Eq. (12.10), the resistivity of P = (RA/I) = (Rad/41) Substitution of values in this gives P = 1.84 x 10.2 m The resistivity of the metal at 20°C is Table 12.2, we see that this is the resistivtt​

Answer 1

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