Physics, 26.03.2020 03:35 natasniebow
A 2.0-m lamp cord leads from the 110-V outlet to a lamp having a 75-W lightbulb. The cord consists of two insulated parallel wires 8.0 mm apart and held together by the insulation. One wire carries the current into the bulb, and the other carries it out.
1. What is the magnitude of the magnetic field the cord produces midway between the two wires?
2. What is the magnitude of the magnetic field the cord produces 2.0 mm from one of the wires in the same plane in which the two wires lie?
3. Compare the field between the two wires with Earth’s magnetic field (0.5×10⁻⁴ T). Give your answer as B/BEarth.
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