A bar (L = 80 cm) moves on two frictionless rails, as shown, in a region where the magnetic field is uniform (B = 0.30 T) and into the paper. If v = 50 cm/s and R = 60 m?, what is the magnetic force on the moving bar?





a.

0.48 N to the right



b.

0.48 N to the left



c.

0.32 N to the left



d.

0.32 N to the right



e.

None of the above


b

Physics & Space Science

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a.
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b.
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d.
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