Question

Two high-current transmission lines carry currents of 29.0 A and 80.0 A in the same direction and are suspended parallel to each other 37.0 cm apart. Part A: If the vertical posts supporting these wires divide the lines into straight 19.0 m segments, what magnetic force does each segment exert on the other?

Part B: Is the force found in part A attractive or repulsive

Answer 1

237.5 N

Step-by-step explanation:

Force between two current carrying conductor per unit length ,

=
`(\mu_0)/(4\pi)*(2I_1I_2)/(R)`

`(\mu_0)/(4\pi) =10^(-7) , I_0=29 A, I_2=80A`

Putting these values , we get

F = 10⁻⁷ X
`(2*29*80)/(.37)`

F = 12.5 x 10⁻⁴ N per unit length

Force on entire length of wire

12.5 x 10⁻⁴ x 19

237.5 N

The force will be attractive i nature,.