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A closely wound circular coil with a diameter of 4.00cm has 600 turns and carries a current of...

A closely wound circular coil with a diameter of 4.00cm has 600 turns and carries a current of 0.500 A. What is the magnetic field at the center of the coil?
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Answer #1

Diameter of the circular coil

Radius of the circular coil

Number of turns in the coil

The current in the coil

The magnetic field at a center of the coil

If there are N turns in the coil, then

Where , the permeability of free space,

=

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