**Category:** Electromagnetism

**Subtype:** Electrical Circuits

**Problem Description:** This problem involves two incandescent light bulbs with rated voltages \(U_{1}\) and \(U_{2}\). It states that the rated power of both bulbs is the same, and it asks for the ratio of their resistances \(R_{1} / R_{2}\). The goal is to determine how the resistances of the two bulbs relate to their rated voltages given that their power ratings are equal.