Register to reply

Double battery circuit

by lil_angel_007
Tags: 2 bateries, circuit, current, parallel circuit, resistor
Share this thread:
Feb20-11, 02:25 PM
P: 2
1. The problem statement, all variables and given/known data

I have this circuit:

2. Relevant equations

what are the currents I1, I2, and I3
and the power being delivered on each resistor

3. The attempt at a solution
i've tried doing 3 equations using the kirchhoff rules but i end up with the wrong equations were
21 - I1R1 - I3R = 0
15 - I2R2 - I3R = 0
I3 = I1 + I2
what am i doing wrong?
Phys.Org News Partner Science news on
Scientists develop 'electronic nose' for rapid detection of C. diff infection
Why plants in the office make us more productive
Tesla Motors dealing as states play factory poker
Feb20-11, 02:39 PM
P: 11,689
Must be a problem with your algebra. Your equations appear to be set up okay.

Register to reply

Related Discussions
Car Battery Circuit Introductory Physics Homework 1
Battery that expires in a circuit Introductory Physics Homework 3
A battery-battery-resistor circuit Introductory Physics Homework 2
Battery Recharge In An AC Circuit Electrical Engineering 4
Battery / circuit problem Introductory Physics Homework 2