Question: An electric current (I) passes through a wire with a semicircular section of radius (a). What is the magnitude of the magnetic field at

An electric current (I) passes through a wire with a semicircular section

An electric current (I) passes through a wire with a semicircular section of radius (a). What is the magnitude of the magnetic field at point (P)? uI (A) a I () 2a a (C) 4a 3I (D) 4a

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