suppose i have the following:
----------------------------------------1
A
----------------------------------------2
B
----------------------------------------3
the current is going from left to right; then the places of zero magnetic field have to be in regions A and B - near wire 3 and wire...
I mean that the magnetic field from the wire at one end has to cancel the magnetic fields of the other two wires (and as the magnetic field strength falls off as 1/distance from wire) this distance has to be close to the wire on the sides.
Homework Statement
Consider three straight infinitely long (parallel to each other), equally spaced
wires (with distance d), each carrying a current I in the same direction.
(a) Calculate the locations where magnetic field is zero.
(b) Sketch the magnetic field line pattern.
(c) If the...