The current-carrying wire loop in Fig (a) lies all in one plane and consists of a semicle of radius 10.0 cm
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A straight wire of length (2π2) metre is carrying a current of 2 A and the magnetic field due to it is measured at a point distant 1cm from it. If the wire is to be bent into a circle and is to carry the same current as before, the ratio of the magnetic field at its centre to that obtained in the first case would be
09
Sep
A straight wire of length (2π2) metre is carrying a current of 2 A and the magnetic field due to it is measured at a point distant 1cm from it. If the wire is to be bent into a circle and is to carry the same current as before, the ratio of the magnetic field [...]
The magnetic field at the centre of a circular coil of radius r is π time that due to a long straight wire at a distance r from it for equal currents. The following figure show three cases. In all cases the circular part has radius r and straight ones are infinitely long. For same current, the B field at the centre P in cases 1, 2, 3, has the ratio
09
Sep
The magnetic field at the centre of a circular coil of radius r is π time that due to a long straight wire at a distance r from it for equal currents. The following figure show three cases. In all cases the circular part has radius r and straight ones are infinitely long. For same [...]
The field normal to the plane of a wire of n turns and radis r which carriers i is measured on the axis of the coil at a small distance h from the centre of the coil. This is smaller than the field at the centre by the fraction.
09
Sep
The field normal to the plane of a wire of n turns and radis r which carriers i is measured on the axis of the coil at a small distance h from the centre of the coil. This is smaller than the field at the centre by the fraction. Find the magnetic field at o. [...]
The current-carrying wire loop in Fig (a) lies all in one plane and consists of a semicle of radius 10.0 cm, a smaller semicicle is rotated out of that plkane by angle θ until it is perpendicular to the plane [Fig.(b)]. Figure (c) gives the magnitude of the net magnetic field at the center of curvature versus angle θ . what os the radius of the smaller semicircle ?
09
Sep
The current-carrying wire loop in Fig (a) lies all in one plane and consists of a semicle of radius 10.0 cm, a smaller semicicle is rotated out of that plkane by angle θ until it is perpendicular to the plane [Fig.(b)]. Figure (c) gives the magnitude of the net magnetic field at the center of [...]