Magnetics with polygon

A conducting wire of length \(L\) is converted into a regular polygon of \(n\) sides. On passing, a current of \(I\) through the wire produces a magnetic field of intensity \(B\) at the center. Find the value of \(B\).

Details and Assumptions:

• \(I = 5 A, L = 2 m, n = 15.\)
• Give your answer in \(\mu T\) correct to two decimal places.