We know that the relationship between the electric potential and the electric field
E=-V
=-{(V/x )+(V/y )+(V/z)} ..1
Since
V=2.4y^3 -5.6 y
So
V/x =0 , V/y=2.4×3y^2 -5.6= 7.2y^2-5.6, V/z=0
put these values in equation 1
E=-7.2y^2+5.6. (V/m) Answer
answer is (e)
The electric potential at a certain point is given by V = 2.4y3 - 5.6y, where...
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