Table 1: Data collecting details.


DremelHigh speed electric motor (a Dremel is a handheld tool for grinding, engraving, etc.). Has built-in speed control which modifies the current sine wave in all except full speed settings.
Fan heaterSmall fan heater with fan, medium heat, and high heat modes selected using a slide switch
Heat gun2-fanspeed digital temperature controlled heat gun
KettleA normal kettle
Laptop chargerDell laptop charger for a D630 laptop
LCD monitorA Dell LCD monitor
Incandescent lightIncandescent light bulb in small desk lamp
Fluorescent lightCircular fluorescent tube light from soldering station magnifying light stand
Mini PCDream PC (labeled PGWY1)
PCA normal personal computer
Pedestal fanA cheap $15 3-speed plastic pedestal fan