A conductor suspended by two flexible wires as in the figure below has a mass per unit length of 0.0800 kg/m.(adsbygoogle = window.adsbygoogle || []).push({});

What current must exist in the conductor in order for the tension in the supporting wires to be zero when the magnetic field is 2.60 T into the page?

Figure: http://east.ilrn.com/books/sepsp06t/pse6e.29.14p.e.jpg

I know you have to use the formula F=IL x B to get the current but I don't know how to put it all together...

I think the force is the tension so you can make that zero. I don't know how to get the length because it only gives you the mass per unit length.

Maybe I'm doing this wrong...I don't know...

Please help me! Thanks in advance!!!! :)

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# Homework Help: Question about magnetic fields

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