please experts help me to solve this question in a short way

Dear Student
Magnetic field will be due to two portions, wire and loop.Due to wireB will be out of paperB1 =μoi2πRB due to loopB will be inside the paperB2 =μoi2RBnet =B2 -B1 =μoi2R-μoi2πR= μoi2R(1-1π)  inside the paper

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