The relationship between voltage, current, and resistance in a circuit is defined by which law?

The correct answer is Ohm's Law, which describes the fundamental relationship between voltage, current, and resistance in an electrical circuit. According to Ohm's Law, the current through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance of the conductor. This relationship can be mathematically expressed with the formula ( V = IR ), where ( V ) represents voltage, ( I ) represents current, and ( R ) represents resistance.

Understanding Ohm's Law is crucial in circuit analysis and design, as it allows engineers and technicians to calculate how much current will flow for a given voltage and resistance, thereby enabling them to design circuits that function properly under specific conditions.