What is true about the relationship between voltage, current, and resistance?

The relationship between voltage, current, and resistance is defined by Ohm's Law, which states that current is directly proportional to voltage and inversely proportional to resistance. This formula can be expressed as:

Current (I) = Voltage (V) / Resistance (R)

This means that for a given voltage, if resistance increases, current will decrease, and conversely, if resistance decreases, current will increase. The correct answer captures this fundamental relationship, demonstrating the role of each variable in the equation.

Understanding this relationship is crucial for linemen because it allows them to effectively select equipment and design electrical systems that ensure safe and efficient power distribution. In practice, this means knowing how to calculate current when voltage and resistance are known, which is essential for troubleshooting and ensuring the integrity of electrical systems.