What does Ohm's Law express the relationship between?

Ohm's Law is a fundamental principle in electrical engineering that defines the relationship between voltage, current, and resistance in an electrical circuit. According to Ohm's Law, the current flowing 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 as:

V = I × R

where V represents voltage, I represents current, and R represents resistance.

Understanding this law is crucial for analyzing circuits, as it allows one to calculate how much current will flow for a given voltage and resistance. This is particularly important when designing and troubleshooting electrical systems, as it helps ensure that components are neither underloaded nor overloaded.

The other relationships mentioned in the other choices either mix incorrect components (like capacitance, which is not part of Ohm's Law) or include power, which is related but not directly expressed through this specific law. Thus, the answer highlights the core components that Ohm's Law directly addresses, ensuring clarity in electrical circuit analysis.