A conducting bar moves as shown near a long wire carrying a constant 50-A current. If a = 4.0 mm, L = 50 cm, and v = 12 m/s, what is the potential difference, VA ? VB?





a.

+15 mV



b.

?15 mV



c.

+20 mV



d.

?20 mV



e.

+10 mV


a

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