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Question: A current of 4A flows through a wire forming a "loop" circle of radius r. If the magnetic field in the center of the "loop" is 20 A,

Part A: How long is the radius of the "loop":

A- If the loop consists of one turn wire loop,

B- If the "loop" consists of 10 turns of wire?

I need help to solve the above question and give an explicative process Thanks!

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Category:- Physics
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