Two parallel long wires currents in the same direction. One wire carries a current of 2A, whereas the other wire carries a current of 4A. The wires are 4cm apart. Calculate the force per unit length in N/m of one wire on the other one.

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A: Answer               9 uN/m Solution

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Magnetic Force

A magnetic force arises when a charged particle or a current-carrying conductor is placed in a magnetic field. It is created because of the movement of the charged particles.