Recent content by Deliria

Yes it crosses the y-axis at 9. Is k the gradient? I calculated A is 6.1 x 10⁻⁸ m² Is the equation possible now?

This is a suggested relationship between L/R and L L/R = kl + A/P P is the resistivity, A is the cross-sectional area and k is the constant for the circuit Using the value of the y-intercept find a value for P with the appropriate unit The graph of L/R against L had the intercept of...

Thanks for the help guys! :) I'm pretty sure the diameter was in millimeters. In my final answer? 8 I couldn't fit it all in the answer box, lol. Standard form was the only way :(

I measured the diameter of a wire and got 0.30. This is in millimeters right? How would you calculate the cross sectional area? Is it just Πr²? so Π x (0.15x10⁻³ x 0.15x10⁻³) = 7.0 x 10⁻⁸m² Is this right?