If you are brand new to the hobby, expert guides like those from Dummies.com and veteran authors like Forrest Mims recommend these steps:
The control or "braking" force that slows down the flow. Electronics For Dummies
To understand how any electronic gadget works, you have to grasp four fundamental "rules of the road": The "push" or pressure behind the current. Current (I): The actual flow of electricity through a path. If you are brand new to the hobby,