Loading…
GCSE Combined Science · key term
A circuit component whose current–potential difference graph is a straight line over the range being considered.
Used by OCR
Specification P3.2g · Physics Paper 1
Revise: Linear and Non-linear Circuit ElementsA linear circuit element has a straight-line I–V graph: its gradient stays constant. If that straight line also passes through the origin, current is directly proportional to potential difference. Doubling the potential difference doubles the current; tripling it triples the current.
Physics, Combined Science
Create a free account to keep every note you open and track your progress.
A circuit component whose current is directly proportional to the potential difference across it under constant physical conditions; its I–V graph is a straight line through the origin.
Doubling the potential difference therefore doubles the current. Its I–V graph is a straight line through the origin: current is directly proportional to potential difference. This is a linear circuit element and is described as obeying Ohm’s law.
