What do you understand by the term "resistance"?

Resistance refers to the opposition that a material or component exhibits against the flow of electric current. This property is quantified in ohms, which is a standard unit of measurement in electrical engineering. When current flows through a conductor, resistance affects how easily that current can pass through. Materials with high resistance impede the flow of electric current significantly, while those with low resistance allow current to flow more freely.

For electrical systems, understanding resistance is essential for calculating how much power will be dissipated in the form of heat and for determining the efficiency of circuits. In summary, the correct answer illustrates the critical role that resistance plays in electrical systems, fundamentally affecting how electricity behaves within a circuit.