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45.Use Biot-Savart's law to derieve the expression for magnetic field due to circular coil(loop) of radius 'r' having 'n' turns at a point on the axis at a distance 'x' from its centre. |
| Answer» 45.Use Biot-Savart's law to derieve the expression for magnetic field due to circular coil(loop) of radius 'r' having 'n' turns at a point on the axis at a distance 'x' from its centre. | |