What device would you use to convert 110 volts to 24 volts in a system?

To convert 110 volts to 24 volts in a system, a step-down transformer is the correct device to use. A step-down transformer is designed specifically to decrease voltage levels while allowing for the same frequency of electrical current.

When electricity passes through the primary coil of a step-down transformer, the magnetic field created induces a voltage in the secondary coil that is lower than the input voltage based on the winding ratio. For instance, if the winding ratio is set for a 110 volts input to achieve a 24 volts output, the step-down transformer effectively reduces the voltage as intended.

In contrast, other devices like rectifiers are typically used for converting alternating current (AC) to direct current (DC), but they do not change voltage levels in the same manner. Step-up transformers perform the opposite function, increasing voltage, while voltage regulators are used to maintain a constant output voltage within a certain range but do not inherently convert voltages from a higher to a lower level. Therefore, when focused on the need to reduce voltage from 110 volts to 24 volts, a step-down transformer is the appropriate choice.