Problem 1: (10 points) A 4.00 m long wire of diameter 6.00 mm has a resistance of 15.0 m2. A potential difference of 23.0 V is applied between the ends. a What is the current in the wire? b. What is the magnitude of the electric field across the wire? è Calculate the resistivity of the wire material. d. Using resistivity table, identify the material of the wire. e. Calculate the power dissipated by the resistor.

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