A piece of copper wire of diameter 2.30 um is used to make a circular loop of radius 7.75cm. The wire is long enough to give the coil exactly 25 turns. The copper wire has a resistivity of 1.72x10 2-cm. a) b) Determine the resistance of the coil. The coil is then spun in a magnetic field of strength 0.492 T. With what frequency must the coil spin in order to yield an rms value of current through the coil of 12.1 Amps?
A piece of copper wire of diameter 2.30 um is used to make a circular loop of radius 7.75cm. The wire is long enough to give the coil exactly 25 turns. The copper wire has a resistivity of 1.72x10 2-cm. a) b) Determine the resistance of the coil. The coil is then spun in a magnetic field of strength 0.492 T. With what frequency must the coil spin in order to yield an rms value of current through the coil of 12.1 Amps?
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Transcribed Image Text:A piece of copper wire of diameter 2.30 um is used to make a circular loop of radius 7.75cm.
The wire is long enough to give the coil exactly 25 turns. The copper wire has a resistivity of
1.72x102 cm.
a)
b)
Determine the resistance of the coil.
The coil is then spun in a magnetic field of strength 0.492 T. With what frequency must
the coil spin in order to yield an rms value of current through the coil of 12.1 Amps?
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