As in the figure, a piece of wire with 2a section was removed from the middle region of the upper edge of the ring, which consists of rectangular conductive wires with long side 10a and short side 4a, and a semi-circular conductive wire with radius a was added instead. A constant current I flows through the closed loop in the figure. What is the magnetic field vector at point O?
As in the figure, a piece of wire with 2a section was removed from the middle region of the upper edge of the ring, which consists of rectangular conductive wires with long side 10a and short side 4a, and a semi-circular conductive wire with radius a was added instead. A constant current I flows through the closed loop in the figure. What is the magnetic field vector at point O?
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As in the figure, a piece of wire with 2a section was removed from the middle region of the upper edge of the ring, which consists of rectangular conductive wires with long side 10a and short side 4a, and a semi-circular conductive wire with radius a was added instead. A constant current I flows through the closed loop in the figure. What is the magnetic field vector at point O?
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