Physics

Problem

A battery with emf 9.0 V and internal resistance 0.30

\Omega

is connected to a 2.1

\Omega

resistor. What is the potential difference measured across the battery’s terminals while the circuit is operating? a)

9.0\ \text{V}

8.4\ \text{V}

7.9\ \text{V}

7.7\ \text{V}