### Magnetic Field along the Axis of Circular Coil Carrying Current (Amrita University)

A current carrying wire generates a magnetic field. According to Biot-Savart's law, the magnetic field at a point due to an element of a conductor carrying current is, 1.directly proportional to the strength of the current, i2.directly proportional to the length of the element, dl3.directly proportional to the Sine of the angle θ between the element and the line joining the element to the point and4.inversely proportional to the square of the distance r between the element and the point.

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