Resistance refers to the opposition or hindrance to a flow of current or energy in a circuit or system. It is measured in ohms and is represented by the symbol "R". Resistance is caused by various factors such as the size and material of the conductors, temperature, and the type of current flowing through the circuit. High resistance results in less current flow, while low resistance results in more current flow. Resistance is an important concept in electronics and electrical engineering and is used in designing and analyzing circuits and systems.
