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For the device shown with a bar of length, L, and mass, m, of negligible resistance moving with an initial speed, vbar, across a region of space with a constant magnetic field directed out of the page. A resistor, R, is connected across the two conducting rails with negligible resistance. Which expression gives the best description of the distance, x, traveled by the bar before it stops?

For the device shown with a bar of length, L, and mass, m, of negligible resistance moving with an initial speed, vbar, across a region of space with a constant magnetic field directed out of the page. A resistor, R, is connected across the two conducting rails with negligible resistance. Which expression gives the best description of the distance, x, traveled by the bar before it stops?

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For the device shown with a bar of length, L , and mass, m , of negligible resistance moving with an initial speed, v bar , across a region of space with a constant magnetic field directed out of the page. A resistor, R , is connected across the two conducting rails with negligible resistance. Which expression gives the best description of the distance, x , traveled by the bar before it stops?

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