Final answer:
An inverter is a device that changes direct current to alternating current. It is used to convert the DC output of solar cells or batteries to AC for different applications.
Step-by-step explanation:
An inverter is a device that changes direct current (DC) to alternating current (AC). It is used in various applications, such as transforming the DC output of solar cells to AC for use in homes or converting DC power from a battery to AC power for devices.
For example, when we use electricity in our homes, we typically need AC power. However, the output of solar cells or batteries is DC, which needs to be converted to AC using an inverter.
The inverter accomplishes this by using semiconductor devices called diodes and transistors to switch the DC current on and off rapidly, creating an AC waveform.