Question

Find out expression for magnetic field at a point due to straight wire carrying current by using Ampere's circuital law

Answer 1

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Answer 2

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⚡⚡✓ according to the ampere circuital law the line integration of magnetic field along with closed-loop equal to mu nod times of total current enclosed by this closed loop or ampere loop.

⚡⚡Line integration of B.dl = mu nod I (in)

Refer to attachment...

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