Answer:
hello your question is incomplete attached below is the complete question
answer: B = [tex]\frac{u_{0}k }{2}[/tex]
Explanation:
I = Kw
attached below is the detailed solution of the given question
Applying Ampere law across the path
2Bw = [tex]u_{0}[/tex]Kw
B( magnetic field ) = [tex]\frac{u_{0}k }{2}[/tex]