UriPui

Can't remember those pesky Ohm's law and power law formulas? Introducing: The game-changing keychain for anyone who deals with electricity! This handy keychain is your new go-to for quick and easy calculations. Just a glance and you've got the right formula to find voltage, current, resistance, or power. How does it work?It's simple: Cover the letter you're looking for, and the formula magically appears!Small but mighty: Fits perfectly in your pocket or on your keychain. Grea