- #1
student85
- 138
- 0
Hello, I need help on understanding a concept in magnetic fields.
I have this homework were 4 long wires are parallel and viewed from on top they look as follows:
O - - - .2m - - - O
l l
l l
.2m .P .2m
l l
l l
O - - - .2m - - - O
So they form a square. What I need to find is the magnetic field in point P (center of square), magnitude and direction. The two wires on the right have electric currents emerging (going out of the page) and the two on the left have i going into the page. The values for all four of them are 5A.
I got the answer with me I just don't understand why the resulting magnetic field in P has its direction as going into the page.
Pleeease help. Any response is appreciated.
EDIT: for some reason the drawing doesn't come up right and two sets of lines appear together on the left side. Well it's supposed to be a square with each side being .2m
I have this homework were 4 long wires are parallel and viewed from on top they look as follows:
O - - - .2m - - - O
l l
l l
.2m .P .2m
l l
l l
O - - - .2m - - - O
So they form a square. What I need to find is the magnetic field in point P (center of square), magnitude and direction. The two wires on the right have electric currents emerging (going out of the page) and the two on the left have i going into the page. The values for all four of them are 5A.
I got the answer with me I just don't understand why the resulting magnetic field in P has its direction as going into the page.
Pleeease help. Any response is appreciated.
EDIT: for some reason the drawing doesn't come up right and two sets of lines appear together on the left side. Well it's supposed to be a square with each side being .2m
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