AC/DC

Electric Charge: A form of charge, positive, negative or zero that make up all known matter.
Electric Circuit: electric device that provides a path for electrical current to flow.
Voltage: representation of the electric potential energy per unit charge.
Power: the energy or motive force by which a physical machine is operated.
Types of voltage Sources:
*DC: voltage source that has a constant voltage across its terminal. EX:batteries
*AC: voltage source that has voltage across its output the shape of sine wave with constant amplitudes. EX: AC generator.
Protoboard: is a construction base for an electronic circuit, a prototype.
Ohm's Law: states that the current through a conductor between two points is directly proportional to the potential difference or voltage across the two points and inversely proportional to the resistance between them, provided that the temperature remains constant.