Physics, 11.04.2020 03:08 lberries08
Three long, straight electrical cables, running north and south, are tightly enclosed in an insulating sheath. One of the cables carries a 22.3 A current southward; the other two carry currents of 18.9 A and 8.6 A northward.
Use Ampere’s law to calculate the magnitude of the magnetic field at a distance of 10.0 \rm m from the cables.
Answers: 3
is the permeability constant. r = 10 m is the distance from the wire, and I is the current magnitude. As there are 2 wires carrying currents northward and 1 carrying current southward:
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