Physics

Problem

Two long parallel wires, each of mass

50\,\text{g}

and length

1\,\text{m}

, are suspended by two light strings of equal length from a common horizontal support. The wires carry equal currents in opposite directions and repel each other. At equilibrium, the strings make an angle of

45^{\circ}

with the vertical, and the wires are separated by

2\,\text{cm}

. Find the current in each wire. (Assume

\tan(45^{\circ}) = 1

g=10\,\text{m/s}^{2}

)

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