Two common sources of electric current are generators and:

Batteries are indeed one of the two common sources of electric current. They work by storing chemical energy and converting it into electrical energy through electrochemical reactions. This makes them a portable and reliable source of power for various devices. Batteries can provide direct current (DC), which is essential for devices like flashlights, mobile phones, and other electronics.

While solar panels also generate electric current, they work differently by converting sunlight into electrical energy, primarily providing power in certain applications. Microchips, on the other hand, are not sources of electric current; they are semiconductor devices that process and control electrical signals. Capacitors store electric charge but do not generate a current by themselves. Thus, batteries are a recognized and widely used source alongside generators for producing electrical current.