Ohm's law describes the mathematical relationship between which three elements?

Ohm's law is a fundamental principle in electrical engineering that defines the relationship between voltage, current, and resistance in an electrical circuit. The law states that 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 expressed with the equation:

[ V = I \times R ]

where V is voltage (in volts), I is current (in amperes), and R is resistance (in ohms).

Understanding this relationship is crucial for signal technicians, as it allows them to calculate any one of the three elements, provided the other two are known. Correctly applying Ohm's law is essential when troubleshooting circuits, performing installations, and ensuring that electrical systems operate safely and efficiently.

In contrast, other choices include elements not governed by Ohm's law. For example, power is related to voltage and current, but it does not directly interact with resistance in the same way. Capacitance and inductance are properties related to capacitors and inductors, respectively, but they do not fit into the framework of Ohm's law. Thus, the focus on voltage, current, and resistance in the correct answer reinforces foundational concepts