A battery is labelled $9.0\ \text{V}$. What is meant by this?
- AEach coulomb of charge from the battery supplies $9.0\ \text{J}$ of electrical energy to the whole circuit.
- BThe battery supplies $9.0\ \text{J}$ to an external circuit for each coulomb of charge.
- CThe potential difference across any component connected to the battery will be $9.0\ \text{V}$.
- DThere will always be $9.0\ \text{V}$ across the battery terminals.