27. Resistors & DC Circuits
Microscopic View of Current
27. Resistors & DC Circuits Microscopic View of Current
4PRACTICE PROBLEM
A 1.8 mm diameter copper wire carries a current of 8.0 A. Determine the magnitude of the electric field required to produce this current in the wire. The conductivity (σ) of copper at room temperature is 5.96 × 10 7 (Ω·m) -1.
A 1.8 mm diameter copper wire carries a current of 8.0 A. Determine the magnitude of the electric field required to produce this current in the wire. The conductivity (σ) of copper at room temperature is 5.96 × 10 7 (Ω·m) -1.