What is the primary function of a transformer?

The primary function of a transformer is to step up or step down voltage. This device operates on the principles of electromagnetic induction, allowing it to increase (step up) or decrease (step down) the voltage levels while maintaining the overall power within a system. By adjusting the voltage, transformers enable efficient power distribution across electrical grids and ensure that electricity can be transmitted over long distances without significant losses.

This voltage adjustment is crucial for various applications, including powering homes and industries, where different voltage levels are required for different devices and systems. The ability to modify voltage levels makes transformers essential components in electrical engineering and power systems.