I'm having trouble find the total resistance of circuits with cells in parallel. The answer in the book is 31 ohms, but my calcuation ends up as 30 ohms. What am I doing wrong? (Please show steps if not too much trouble) Thanks in advance!:D(adsbygoogle = window.adsbygoogle || []).push({});

See this site for my work and a diagram of the circuit.

http://img72.photobucket.com/albums/v219/fr0st_lizard/Physics_Problem.gif

The blurry thing says

2 volts/cell

Internal resistance: 1 ohm/cell

And the resistors in the bottom left corner are 10, 5, and 15 ohms. Sorry for my crappy drawing, I did it on paint!

**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!

# Homework Help: Finding total resistance of circuits with cells in parallel

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