This is a free version that contains advertising. You can buy Google Play the full version to support the developer and get rid of advertising banners. The app includes: Ohm's law for DC Ohm's law for AC LC Resonance Y-Δ Transformation Electrical Energy Current Density Ideal transformer AC circuits Connection of capacitors Capacitive reactance Run a 3 phase motor on a single phase Capacitive Voltage Divider Capacitor Charge / Energy Calculator Calculation of discharge time of capacitors Connec