A potential–position graph shows that as one moves from point X to point Y through a…
PHYSICS · Single correct · A Level · Physics · Electricity · Electricity
Problem
A potential–position graph shows that as one moves from point X to point Y through a certain resistor, the potential drops linearly from 6 V to 2 V. Which statement about the conventional current in the resistor is most consistent with this observation?
(a) The current flows from Y toward X because charges move from low to high potential.
(b) The current is zero because the potential drop is uniform.
(c) The current flows from X toward Y, from higher to lower potential across the resistor.
(d) The potential–position graph alone is insufficient; the direction of current cannot be determined.