(adsbygoogle = window.adsbygoogle || []).push({}); A battery has a terminal voltage of 12.0 V when no current flows. Its internal resistance is 2.0 Ω. If a 1.7 Ω resistor is connected across the battery terminals, what is the terminal voltage and what is the current through the 1.7 Ω resistor?

Can someone point me in the right direction?

I know I have to use V = E - Ir because there is a internal resistance.

But I am not sure how to start...

Thanks in advance.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Terminal voltage and current

**Physics Forums | Science Articles, Homework Help, Discussion**