I have to find a Linearization of voltage for a lab but im not to sure how to do

Question

I have to find a Linearization of voltage for a lab but im not to sure how to do it so ill just post the question and I hope some one can help.

"To conserve lab time, do this step at home. Plot the data so as to quantitatively confirm that V has the distance dependence that is expected in the vicinity of an isolated point charge. In other words, assuming V proportional to r^n, what is the exponent n? Use Excel and graphical methods. Discuss your results."

I know you have to use logs and when its graphed should be a straight line, if some one can give me the equation it would be a huge help.

Explanation / Answer

V = K / R equation for potential V * R = K product of V * R = constant Plot of V vs 1/R should be straight line Example: V = 9 1/R = 1 V = 1 1/R = 1/9 V = 2.25 1/R = 1/4 If you use V = K R^n let K = 1 log V = n log R (K would be just an additive constant) and the slope should be -1

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