What is the current density in the wire

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Reference no: EM13305302

1. An iron wire with a diameter of 1.2 mm has a uniform electric field of 0.35 V/m imposed along its entire length. The temperature of the wire is 45 °C. Assume one free electron per atom.

a. Determine the resistivity of the wire ?

b. What is the current density in the wire?

c. What is the total current in the wire?

d. What potential difference must exist between the ends of a 3-m length of the wire to produce the stated electric field?

Reference no: EM13305302

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