Transcribed Image Text: The magnetic force dFB on a infinitesimal segment of current I is
dF = I dī × B
Where dL is the displacement vector of the infinitesimal current segment. The
total magnetic force on a finite current segment is
dL
dF
I
F = 1S (dL x B)
1. If the magnetic field is uniform in space the magnetic force on current
simplifies to FB = I (L × B). What is vector L in this expression? Choose
one.
L is the length of the current segment
L is the vector from the point where the current enters the uniform field to the point where the current leaves
the uniform field.
L is the current.
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