Two ideal parallel-plate capacitors with capacitances and are connected in series to…

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Two ideal parallel-plate capacitors with capacitances

2\,\mu\text{F}

and

6\,\mu\text{F}

are connected in series to a

24\,\text{V}

ideal battery and allowed to reach steady state. Which of the following correctly compares the potential differences and the energies stored in the two capacitors? (a) The

2\,\mu\text{F}

capacitor has the greater potential difference, but both capacitors store the same energy. (b) The

6\,\mu\text{F}

capacitor has the greater potential difference and stores more energy than the

2\,\mu\text{F}

capacitor. (c) The

2\,\mu\text{F}

capacitor has the greater potential difference and stores more energy than the

6\,\mu\text{F}

capacitor. (d) Both capacitors have the same potential difference, and the

6\,\mu\text{F}

capacitor stores more energy.

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