The plates of an isolated parallel-plate capacitor (charge remains constant) are…

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

The plates of an isolated parallel-plate capacitor (charge remains constant) are slowly pulled apart from a separation of

0.40\,\text{mm}

1.0\,\text{mm}

. By what factor does the energy stored in the capacitor change?