Question

Two parallel wires are separated by a distance d and carry equal currents I in opposite directions. Compute the force per unit length experienced by either wire. 22.

Answer 1

for two parallel corrent carrying Force Equation Conductory e de со Знн where d cin distance between two parallel conductors d in the per unit length of conductor n a I = cuorrent in conductor t e ca t I = current in conduvar " I = I₂ = I = magnitude. conductar I will produce a field B, at all near by points. The magnitude of B, due to current I at a distance d on the copre conductan'a is Mo I ③ fource on conductas 2 in f = B, Izl substituate B, in equalian B = 2nd and 4 ₂ = Mo I Ind ③ = MOIY N conductor '2' per unit length = +2 force of - zad - Mo I, IZ – 4 = Mo IZ NIM atid will produce a field B, at all The magnitude of B₂ due to corrent distance d' on the condo hour y in - condo har 2 near points. I at a - B₂ = Mo I 2nd

2Td A 2Tid & force on condo don't F = B₂ I, I substinate 6 . B2 valce in equation 6 f = Mo I, I, I Mo I 21 = 2nd force of conductor 4 per unit length a fi F = Mo I, IZ e zno - not NIM Direction of force fi af in determined by flening right hand thumb aule forces f and fr are away froren the cenne crepulsion force developed between two parallel conductar carrying when Equal and direction opposite