What is the role of a transducer in an electrical system?

The role of a transducer in an electrical system is to convert one form of energy into another. This is fundamental to many applications in electrical and electronic systems. Transducers can transform physical quantities, such as pressure, temperature, or light, into electrical signals, or vice versa. For example, a temperature sensor converts thermal energy into an electrical signal, allowing temperature readings to be electrically monitored and processed.

This capability to convert energy forms is essential for interfacing with the physical world, making it possible for systems to respond dynamically to changes in their environment. In contrast, options that suggest storage of electrical energy, regulation of voltage levels, or measurement of electrical resistance pertain to different functionalities within electrical systems. Each of these aspects serves unique purposes but does not embody the primary function of a transducer, which is fundamentally about energy transformation.