A Current In A Wire Bent Into The Shape Of A Square With Side 2a. Then The Magnitude Of The Magnetic Field At The Center Of The Square Is Vuo! 4 πα B. Vuol πα C. 4 Но І 4n A D. Zero

A current in a wire bent into the shape of a square with side 2a. Then the magnitude of the magnetic field at the center of the square is Vuo! 4 πα b. vuol πα C. 4 Но І 4n a d. zero

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