What is the relationship between voltage and current in a circuit according to Ohm's Law?

The relationship between voltage and current in a circuit is defined by Ohm's Law, which states that the voltage across a conductor is directly proportional to the current flowing through it, provided the temperature remains constant. This is mathematically represented as Voltage = Current x Resistance.

In this equation, voltage (measured in volts) is calculated by multiplying the current (measured in amperes) by the resistance (measured in ohms). This highlights how an increase in current, assuming the resistance remains constant, will lead to an increase in voltage, and vice versa. It is foundational to understanding how electrical circuits operate, as it allows for the calculation of one of the three key components (voltage, current, resistance) if the other two are known.

Understanding this relationship is crucial for linemen, as it helps them to effectively work with electrical systems, troubleshoot issues, and ensure that systems are operating efficiently and safely.