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## Homework Statement

If I have a current-voltage (y-x) graph for a resistor, I could argue that the reciprocal of the gradient at a point is equal to the resistance of that resistor at that pd across it.

However, on a markscheme for an AS level physics paper, they

**penalised**linking gradient to resistance in any way whatsoever. Why is that?

Thanks in advance for any help!

## Homework Equations

V=IR

## The Attempt at a Solution

N/A