PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
For an air-filled parallel-plate capacitor, which one of the following single changes will exactly double its capacitance?
(a) Halving the plate area while keeping the separation unchanged.
(b) Doubling the potential difference between the plates while keeping their geometry unchanged.
(c) Doubling the separation between the plates while keeping the plate area unchanged.
(d) Halving the separation between the plates while keeping the plate area unchanged.