Commercial Food Equipment Service Association (CFESA) Electrical Certification Practice Test

In a series circuit, the total voltage supplied by the source is divided among the various loads (or resistances) connected in the circuit. This occurs because each load has a specific resistance, and according to Ohm's Law, the voltage across each resistor (or load) is proportional to its resistance relative to the total resistance in the circuit.

As a result, when multiple resistances are connected in series, the total voltage is distributed across those resistances, creating a situation where each load experiences a fraction of the total voltage, depending on its resistance. Consequently, each load receives a different voltage drop, and the sum of all voltage drops will equal the total voltage supplied to the circuit. This fundamental behavior of voltage distribution is a key characteristic of series circuits, making the assertion that voltage divides across the resistances the correct choice.