When a 208-Ω Resistor Is Connected Across a 15

question 4

Multiple Choice

When a 20.8-Ω resistor is connected across a 15.6-V battery,a current of 500 mA flows.What is the internal resistance of the battery?

• A)20.8 Ω
• B)10.4 Ω
• C)31.2 Ω
• D)0.732 Ω
• E)1.25 Ω