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1. Resistance = (rho*Length)/Cross sectional area. (R=ρL/A)
I plotted a graph of resistance on y axis and length on x axis. So what would my gradient be? I think my gradient is resistance/length...but is this correct? My teacher said the gradient is rho/cross sectional area in class but I think he made a mistake...
2. y = mx where m is a constant, R is y and L is x kthnxbye your teacher is correct.
3. (Original post by Vikingninja)
y = mx where m is a constant, R is y and L is x kthnxbye your teacher is correct.
Ohhhhh yes yes, I understand now. Thank you VERY much!

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Updated: February 10, 2017
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