A long pair of insulated wires serves to conduct 24.5 A of dc current to and fro

Question

A long pair of insulated wires serves to conduct24.5 A of dc current to and from an instrument. A third wire is placed in the plane of the two wires parallel and just to the right. If it carries 24.0A upward, what force per meter of length does it exert on each of the other two wires? Assume it is2.8?mm from the nearest wire, center to center.

A) Determine the force per meter exerted by the third wire on the right wire shown in the figure.

B) Determine the force per meter exerted by the third wire on the left wire shown in the figure.

Explanation / Answer

A) force per meter =0.001192697 N/m ---> attractive force exists

B) force per meter =0.001159763 N/m ---->repulsive force exists

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