What device would be responsible for cooling electronic equipment?

Cooling electronic equipment is typically managed by a fan, which is designed to increase air circulation around devices that generate heat during operation. Electronic components, especially those in high-performance systems like computers or power amplifiers, can become excessively hot if not adequately cooled. Fans help to dissipate this heat by drawing cooler air into the system and expelling warmer air, thereby maintaining optimal operating temperatures and preventing overheating that can lead to equipment failure.

While fuses, lamps, and transformers each serve specific functions in electrical systems, they do not contribute to cooling. Fuses protect circuits from overcurrent, lamps provide illumination, and transformers are used to change voltage levels in an electrical system. Therefore, the fan stands out as the correct choice for the function of cooling electronic components.