Find must the current in the coil be

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A closely wound, circular coil with radius 2.10cm has 830 turns.

A. What must the current in the coil be if the magnetic field at the center of the coil is 5.00×10?2

T ?

B. At what distance x from the center of the coil, on the axis of the coil, is the magnetic field half its value at the center?

Reference no: EM13335989

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