Electronics For Dummies -

Control the flow of current so other parts don't get too much power.

Act like tiny temporary batteries that store and release energy. 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. Control the flow of current so other parts

The amount of work being done (measured in Watts). Meet the Components Electronics For Dummies