1) A technician has been given wire that can safely carry 5 A. She has been instructed to construct a solenoid that will have a magnetic field of 0.06 T at its center. After completing some tests of the wire, the technician finds that the tightest safe winding possible with the wire will provide 10 loops/cm. Will the technician be able to construct the desired solenoid with this wire?
2) A technician operating a winding machine constructs a solenoid from 200 m of copper wire wound on a plastic base with a diameter of 5 cm. The base is 25 cm long. how much current must flow through the wire to provide a magnetic field of 0.15 T at the center of the solenoid? is this reasonable?
Thank you!
2 answers