By a wire made up of two rectilinear segments horizontals extending from left to right indefinitely...
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By a wire made up of two rectilinear segments horizontals extending from left to right indefinitely and a semicircle in the middle of radius R, a current I circulates, as shown in the figure. The direction of the magnetic field B, due to this current, in the center of the semicircle, is: a) towards the inside of the page. R b) upwards. c) out of the page. d) to the right. By a wire made up of two rectilinear segments horizontals extending from left to right indefinitely and a semicircle in the middle of radius R, a current I circulates, as shown in the figure. The direction of the magnetic field B, due to this current, in the center of the semicircle, is: a) towards the inside of the page. R b) upwards. c) out of the page. d) to the right.
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