How many turns must be wound on a flat, circular coil of radius 20 cm in order to produce a magnetic field of magnitude 4.0 × 10-5 T at the center of the coil when the current through it is 0.85 A?
How many turns must be wound on a flat, circular coil of radius 20 cm in order to produce a magnetic field of magnitude 4.0 × 10-5 T at the center of the coil when the current through it is 0.85 A?
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Transcribed Image Text:How many turns must be wound on a
flat, circular coil of radius 20 cm in
order to produce a magnetic field of
magnitude 4.0 × 10-5 T at the center of
the coil when the current through it is
0.85 A?
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