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A solenoid has 4.0 turns per centimetre and a current of 125 A. What is the magnetic field at the center of the solenoid? If

A solenoid has 4.0 turns per centimetre and a current of 125 A. What is the magnetic field at the center of the solenoid? If you are staring at the solenoid head on, and the current flow appears clockwise, is the North end of the solenoid facing you or away from you?

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