straight power lines carrying an ac current of 250 A (rms) pass over a wheat fie

Question

straight power lines carrying an ac current of 250 A (rms) pass over a wheat field, the end-on view is shown in the diagram. the currents are oppositely directed at any instant of time. a) how large is peak current through wires? b) at the instant when the current peaks, how large is the magnetic field magnitude produced by just one wire, at the point P in the wheat field below the wires? c) what is the net magnetic field vector (magnitude and direction) at Point P, as produced by both wires acting together when the current peaks?

sorry picture is inverted. m= 15 m vertical and 3m horizontal.

Explanation / Answer

a) 250*sqrt2 = 353.55 A b) B = 4.6*10^-6 T c) 1.818*10^-6 T

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