For a circular coil of radius R and N turns carrying current I, the magnitude of...

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For a circular coil of radius R and N turns carrying current I, the magnitude of the magnetic field at a point on its axis at a distance x from its centre is given by. B = H, IRN 2(x + R) Show that this reduces to the familiar result for field at the centre of the coil. Consider two parallel co-axial circular coils of equal radius R, and number of turns N, carrying equal currents in the same direction, and separated by a distance R. Show that the field on the axis around the mid-point between the coils is uniform over a distance that is small as compared to R, and is given by, HBNI B=0.72-1 R, approximately. For a circular coil of radius R and N turns carrying current I, the magnitude of the magnetic field at a point on its axis at a distance x from its centre is given by. B = H, IRN 2(x + R) Show that this reduces to the familiar result for field at the centre of the coil. Consider two parallel co-axial circular coils of equal radius R, and number of turns N, carrying equal currents in the same direction, and separated by a distance R. Show that the field on the axis around the mid-point between the coils is uniform over a distance that is small as compared to R, and is given by, HBNI B=0.72-1 R, approximately.

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