Useful Electrical Calculator Publisher: minh tran Genre: Utilities Released: 28 Jun, 2012 Size: 485.7 KB Price: $2.99 Click here to request a review of this app App Store Info Description Useful Electrical Calculator is the best and simplest way to find the direct current, single phase and three phase. What's New in Version 1.2 *minor revisions Screenshots Screenshot 1 of 3