## Magnetic Field at the Center of an Arc

The formula for calculating the magnetic field at the center of an arc requires the values of current, in amperes, arc, in radians and distance from the center of the conductor, in meters. The value thus obtained is measured in tesla.

## $$\frac{\mathrm{\mu ia}}{4\mathrm{\Pi r}}$$

The values required are : i = current, a = arc and r = distance from center of conductor.

ENTER THE VARIABLES TO BE USED IN THE FORMULA