Your employer requests you to make a 32 cm long solenoid having an interior field of 4.7mT. The specifications call for a single layer of wire, wound by the coils as close altogether as possible. You encompass two spools of wire available. Wire having a #18 gauge consists of a diameter of 1.02 mm and consists of a maximum current rating of 6A. Wire having a #26 gauge is 0.41mm in diameter and can carry up to 1 A.
Determine what current will you require? In Amps.