A solenoid is being constructed to yield a uniform 0.559-T magnetic field near its center. Suppose a given extremely long wire is available to make 6 000 circular turns around this conductor. If the solenoid has to be 45.0-cm long and 6.8-cm in diameter, how much electric current is needed to produce the given field?  a. 33.35 A b.47.88 A c.3.34 A d.4.79 A

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