A semicircular wire of radius R connects two straight wire segments. If a current I flows...
A semicircular wire of radius R connects two straight wire segments. If a current I flows along the wire, the magnitude of the magnetic field at the center of the semicircular wire due to the current in the semicircular wire is
A) μoI/8πR.
B) μoI/2R.
C) μoI/8R.
D) μoI/4πR.
E) μoI/4R.
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