A battery is linked to a potentiometer. The potentiometer is made up of a uniform resistance wire and a sliding contact $P$. The potential difference (p.d.) $V$ between the sliding contact $P$ and the end $Q$ of the wire is found using a voltmeter. The sliding contact $P$ is then shifted from end $Q$ to end $R$ of the wire. Sliding contact $P$ is a distance $d$ from $Q$. Which graph represents how the p.d. $V$ changes with distance $d$?
Physics 9702 · AS & A Level · Potential dividers