Electromagnetism solution

Question

Two long, parallel wires hang by 4.00-cm-long cords from a common axis . The have a mass per unit length of 30 g/m and carry the same current in opposite directions. What is the current in each wire if the cords hang at an angle of 6.00 degree with the vertical?

Answer 1

This appears to be a static force balance situation.

One more piece of information (it would appear) is needed to solve it.

The missing piece of information is the angle to the vertical, theta, made by the cords.

The square of the current is proportional to tan(theta) sin(theta)