12+ Top iOS Apps for Electrical & Electronics Engineers Electrical ToolKit. Electrical ToolKit is a basic iOS app for electrical engineering students. It has lots of Electrical & Electronics Calculators such as, basic Ohm’s Law, Power Factor Calculator, Polar and rectangular values, Power triangle, RLC (Series/parallel), Resistor color codes etc. Related searches for wiring diagram app for ipad wiring schematic appfree diagram apphouse wiring appwiring diagrams for freeelectrical wiring appclass diagram for appwiring diagram software freefree wiring diagrams for cars