In National 5 Physics examine the current and voltage in series and parallel circuits to formulate rules and determine unknown values.

Learn how engineers design electrical circuits by calculating the voltage, current and resistance of electrical components.

Not only can one select a target current to put through an LED, but by providing a target voltage, the system will automatically calculate the necessary series resistor.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...