What is the relationship between the voltage, current, and resistance in a circuit?

The relationship between voltage, current, and resistance in an electrical circuit is fundamentally described by Ohm's Law, which states that current equals voltage divided by resistance. This means that if you know the voltage (the electrical potential difference) and the resistance (the opposition to current flow), you can calculate the current (the flow of electric charge) that will flow through the circuit.

When using Ohm's Law, if the voltage increases while the resistance stays the same, the current will increase as well. Conversely, if resistance increases while keeping voltage constant, the current will decrease. This principle is critical for understanding how circuits operate and is foundational in electrical engineering and automotive technology, including the diagnostics and repair of electrical systems in vehicles.

Other potential answers do not accurately describe the relationship dictated by Ohm's Law. For instance, the option asserting that voltage equals current multiplied by resistance confuses the variables, reversing the relationship defined by Ohm's Law.