What is the Magnetic Field at Point P in Figure (e)?

AI Thread Summary
The discussion focuses on calculating the magnetic field at point P in the given figure using relevant equations. Participants consider whether to treat the two horizontal lines as semi-infinite lines for the calculation. The proposed formula combines the contributions from both the semi-infinite lines and a circular loop. There is agreement on the approach and the direction of the magnetic field being into the board. The conversation confirms the validity of the assumptions made for the solution.
musiliu
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Homework Statement



#32, figure (e)

http://www.physics.sfsu.edu/~nlepeshk/230/28_32.pdf"

Homework Equations



Binfinite line = u0 I / 2 pi rperpendicular

Bcircle = u0 I / 2R

The Attempt at a Solution



should I assume that the two horizontal lines are semi-infinite lines?
if so, then

Btotal = (1/2) Bcircle + Binfinite line (2 semi-infinite)

and direction is into the board right?
 
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musiliu said:
should I assume that the two horizontal lines are semi-infinite lines?
if so, then

Btotal = (1/2) Bcircle + Binfinite line (2 semi-infinite)

and direction is into the board right?
Yes, and yes, sound reasonable to me. :approve:
 
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