A closely wound, circular coil with radius 2.50 cm has 800 turns.Y Part AWhat must the current in the coll be if the magnetic field at the center of the coil is 0.0770 T?Express your answer to three significant figures and include the appropriate units.I= ValueSubmitPart BμÀPWRequest AnswerAt what distance z from the center of the coil, on the axis of the coll, is the magnetic field half its value at the centerExpress your answer to three significant figures and include the appropriate units.HAValueUnits→BED ?Units?

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A closely wound, circular coil with radius 2.50 cm has 800 turns. Y Part A What must the current in the coil be if the magnetic field at the center of the coil is 0.0770 T? Express your answer to three significant figures and include the appropriate units. I= Value Submit Part B μÅ 2= Request Answer At what distance z from the center of the coil, on the axis of the coll, is the magnetic field half its value at the center Express your answer to three significant figures and include the appropriate units. μA Units Value B Units P ?

A closely wound, circular coil with radius 2.50 cm has 800 turns. Y Part A What must the current in the coil be if the magnetic field at the center of the coil is 0.0770 T? Express your answer to three significant figures and include the appropriate units. I= Value Submit Part B μÅ 2= Request Answer At what distance z from the center of the coil, on the axis of the coll, is the magnetic field half its value at the center Express your answer to three significant figures and include the appropriate units. μA Units Value B Units P ?