# 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.
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