If the electric potential along a line due to a charge is given by V(r)=25r+3, where r is the distance from the charge, what is the electric field at a point r = 5 along this line?

If the electric potential along a line due to a charge is given by V(r

1.	If the electric potential along a line due to a charge is given by V(r)=25r+3, where r is the distance from the charge, what is the electric field at a point r = 5 along this line?
Answer» If the electric potential along a line due to a charge is given by $V (r) = \frac{25}{r} + 3$ , where r is the distance from the charge, what is the electric field at a point r = 5 along this line?

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If the electric potential along a line due to a charge is given by V(r)=25r+3, where r is the distance from the charge, what is the electric field at a point r = 5 along this line?

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