j.hdxr
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please see attached.im self studying physics so maybe im making a silly mistake?

the answer is A.

thank you for taking your time to read this.
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A-Conquer
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R = pL / A ,
Gradient should be resistivity/Cross sectional area
as R is in Y axis and L is on X axis ( so p/A is the gradient)

so you would do Gradient times Cross Sectional area to get GxA
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