Tightly enclosed in an insulating sheath

Reference no: EM13652284

Three long, straight electrical cables, running north and south, are tightly enclosed in an insulating sheath. One of the cables carries a 21.3 A current southward; the other two carry currents of 17.2 A and 10.8 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.
Express your answer to two significant figures and include the appropriate units.

Reference no: EM13652284

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