Resistors and Ohm's Law Video Lessons

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Problem: A 0.0075 v/m electric field creates a 3.9 mA current in a 1.0 mm diameter wire. What material is the wire made of?

FREE Expert Solution

Electric field, E:

E=ρJ

Resistivity, ρ:

ρ=EJ

Current density, J:

J=IA

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Problem Details

A 0.0075 v/m electric field creates a 3.9 mA current in a 1.0 mm diameter wire. What material is the wire made of?

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