1.

Electric potential varies with distance such that V(x) =ax-bx3; where a and b are constants. Where will the electric field intensity be zero?

A. x= ( frac {a}{b} )
B. x= ( frac {a}{3b} )
C. x= ( sqrt{ frac {a}{b}} )
D. x=+ ( sqrt{ frac {a}{3b}} ) and x=- ( sqrt{ frac {a}{3b}} )
Answer» E.


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