In a graph where current is plotted on the vertical axis and potential difference on…
PHYSICS · Single correct · A Level · Physics · Electricity · Electricity
Problem
In a graph where current I is plotted on the vertical axis and potential difference ΔV on the horizontal axis for a metallic conductor, the numerical value of the straight-line slope represents which of the following quantities?
(a) the material’s resistivity ρ
(b) the resistance’s reciprocal 1/R
(c) the total electric charge that has passed
(d) the resistance R itself