Question: The figure is a cross section through three long wires with linear mass density 5 6 . 0 g / mg / m . They
The figure is a cross section through three long wires with linear mass density gmgm They each carry equal currents in the directions shown. The lower two wires are cm apart and are attached to a table. Figure What current II will allow the upper wire to "float" so as to form an equilateral triangle with the lower wires?
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