How can the current in a simple electrical circuit be calculated?

The calculated current in a simple electrical circuit is determined using Ohm's Law, which states that the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. The mathematical representation of this principle is given by the formula:

I = V / R

This means that to find the current, you divide the voltage by the resistance. Therefore, in the context of the provided options, dividing the voltage by the resistance accurately reflects how current is calculated in electrical circuits.

This understanding of the relationship between voltage, current, and resistance is fundamental in electrical engineering and is widely applied in various practical contexts, including the maintenance and operation of electric components in sewage treatment facilities.