What does the term "voltage drop" refer to?

The term "voltage drop" specifically refers to the reduction in voltage that occurs as electrical current flows through a conductor or any component in a circuit. This phenomenon is primarily caused by the resistance within the conductor and any other elements in the circuit, which dissipate energy in the form of heat due to the flow of current. As a result, the voltage at the load end is lower than the voltage at the source end. Understanding voltage drop is crucial in electrical systems to ensure that devices receive adequate voltage for proper operation and to prevent inefficiencies and potential equipment damage. In practical applications, calculating voltage drop helps in selecting the appropriate wire sizes and ensuring that the installation meets electrical codes and standards.