Three long parallel wires are 3.8 cm from one another. (Looking along them, they

Question

Three long parallel wires are 3.8 cm from one another. (Looking along them, they are at three corners of an equilateral triangle.) The current in each wire is 6.20A ,but its direction in wire M is opposite to that in wires N and P (

a-Determine the magnitude of the magnetic force per unit length on wire M due to the other two.

b-Determine the angle of the magnetic force on wire M due to the other two.

c-Determine the magnitude of the magnetic force per unit length on wire N due to the other two.

d-Determine angle of the magnetic force on wire N due to the other two.

e-Determine the magnitude of the magnetic force per unit length on wire P due to the other two.

f-Determine the angle of the magnetic force on wire P due to the other two.

g-Determine the magnitude of the magnetic field at the midpoint of the line between wire M and wire N.

h-Determine the angle of the magnetic field at the midpoint of the line between wire M and wire N.

google the problem to get the figure(sorry don't know how to uplode it)

i'll give away 5 stars, make sure to get the answers, :)

Explanation / Answer

A conductor carrying current will repel a parallel conductor carrying current in the opposite direction and will attract a parallel conductor carrying current in the same direction. This can be verified by the Right Hand Rule.
Refer to the figure below, Force on conductor M due to N is shown as F(NM) =B*I(M)*L*sin? where
B is the field due to current in N at M and I(M) is the current through M, L length of the conductor M, and ? the angle between B and conductor M.
B = (?? *I(N))/(2*?*r)
?? = 4* ?*10??
I(N) the current through the conductor N ,

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