Question

2. (20 points) A copper wire with a square cross-section (side length 5 of 3.00 A. The two wires are parallel over a region of 20.0 cm, where they are 1.60 cm apa produces a magnetic field on the copper wire. The copper wire is conn current directed rightward. Data of copper: resistivity = 1.68 x 10-8 Ωm; free electron number density-8.50 x 1028/㎡ a. What is the magnetic field the iron wire exert on the copper wire? (For this part only, ignore the thickness of the copper wire.) b. What is the magnitude of current in the copper wire? (Hint: Find its resistance first.) c. What is the drift velocity of an electron in the copper wire? d. What is the magnitude and direction of the Hall electric field in the copper wire? e. What is the magnitude of the Hall voltage? Is the potential higher or lower on the top of the wire? 500. um) is next to an iron wire with a current rt. The iron wire ected to a 5.00 V power source, with CO 5.00 20.0 cm1.60 c iron

Answer 1

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