(Solved): A wire 3.44 m long and 8.18 mm in diameter has a resistance of 11.5m\Omega . A potential difference ...

A wire 3.44 m long and 8.18 mm in diameter has a resistance of

. A potential difference of 31.3 V is applied between the ends. (a) What is the current in amperes in the wire? (b) What is the magnitude of the current density? (c) Calculate the resistivity of the material of which the wire is made. (a) Number Units (b) Number Units (c) Number Units