Assume that an electromagnet employs a coil 1.2m in diameter made up from square copper wire 1.6mm on a side. The power supply generates 120V at a maximum power output of 4.0kW.
i) Determine how many turns are required to run the power supply at maximum power?
ii) Determine the magnetic field strength at the center of the coil?
iii) If you employ a greater number of turns and this similar power supply (Voltage of 120V), will a greater magnetic field strength outcome?