A car battery has an electromotive force (e.m.f.) of $12\,\text{V}$ and an internal resistance of $0.05\,\Omega$. It is linked to the starter motor of a car, and the current in the motor is $160\,\text{A}$. What is the terminal p.d. across the battery?
- A$0\,\text{V}$
- B$4\,\text{V}$
- C$8\,\text{V}$
- D$12\,\text{V}$