- #1

billyray

- 58

- 1

## Homework Statement

I have a circuit that I am to analyse and find I. I am told to use an excel matrix sheet given to me to solve 3 unknowns. I have 4 loops so this is a problem. I have made an attempt using three loops and referred to a previous thread on here for some help. It says I can do it with three loops.

https://www.physicsforums.com/threads/ac-circuit-analysis-mesh-and-nodal.791744/

[/B]

## Homework Equations

I have attempted the question many times and am including my results. They do not seem to agree with the results for the agreed answer on here.Loop 1 --- 120-(2)I1-(I1-I2)(-j5)=0

Loop2 --- (-j5)(I2-I1)+(j4)(I2-I3)-14.14+j14.14=0

Loop3 --- (j4)(I3-I2)+(4)I3-j120=0

Answers;

I1=19.1624+j12.5642

I2= 14.1367-j3.77088

I3= 23.9538+j20.1829 [/B]

I can't seem to upload spread sheet

## The Attempt at a Solution

I am incuding this and a spead sheet I am using. any pointers would be amazing as I am completely lost wheln I use the spreadsheet.[/B]