A conducting bar moves as shown near a long wire carrying a constant 80-A current.If a = 1.0 mm,b = 20 mm,and v = 5.0 m/s,what is the potential difference,Va − Vb? 
A) −0.24 mV
B) +0.24 mV
C) −0.19 mV
D) +0.19 mV
E) −0.76 mV
Correct Answer:
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