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Find the potential between a(-7,2,1) and b(4,1,2). Given E = (-6y/x^2 )i + ( 6/x) j + 5 k.(a) -8.014(b) -8.114(c) -8.214(d) -8.314This question was posed to me during an interview for a job.This interesting question is from Line Integral in division Vector Calculus of Electromagnetic Theory

Answer»

Right OPTION is (c) -8.214

The BEST I can explain: V = -∫ E.dl = -∫ (-6y/x2 )dx + ( 6/x)dy + 5 dz, from b to a.

On INTEGRATING, we GET -8.214 volts.



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