Two parallel, long wires are kept 0.20 m apart in vacuum, each carrying current of \( x \) A in the same direction. If the force of attraction per meter of each wire is \( 2 \times 10^{-6} \, \text{N} \), then the value of \( x \) is approximately:
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The force between two parallel current-carrying wires is attractive if the currents are in the same direction and repulsive if they are in opposite directions. The force per unit length is directly proportional to the product of the currents and inversely proportional to the distance between the wires.