forces between multiple lines (1 Viewer)

[supsations]

if i have 3 lines

2A 3A 2A

^ ^
| | |
| | |
| | |
| | |
| | |
| | |
v

|--4cm--|--6cm--|

(v, ^ denote current direction)

how do i work out the net force on each wire?
and the net force on the middle wire.

 

[thunderdax]

The trick to this kind of question is work out the 3 forces acting on each of the PAIRS of wires and then use vector addition on each to find the net force.