Physics (AS & A Level) · Oct / Nov 2017 · Paper 12 · Question 36

A typical mobile phone battery has an e.m.f. of 5.0 V and an internal resistance of 200 mΩ. What is the terminal p.d. of the battery when it supplies a current of 500 mA?

1. A4.8 V
2. B4.9 V
3. C5.0 V
4. D5.1 V

As printed in the paper