Magnetic Force on a Semicircular Wire
A wire bent into a semicircle of radius 6.0 cm carries a current of 8.0 A. A uniform magnetic field of 0.25 T is directed perpendicular to the plane of the semicircle. What is the magnitude of the net magnetic force on the wire?
A
2.4 × 10⁻² N
B
0.24 N
C
4.8 × 10⁻² N
D
7.5 × 10⁻² N
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