What effect can a power surge have on electrical devices?

A power surge refers to a sudden increase in voltage in an electrical system. This increase can occur due to various factors, such as lightning strikes, power outages, or the sudden startup of high-power devices. The primary effect of a power surge on electrical devices is the increase in voltage that may exceed the normal operating levels that these devices are designed to handle.

When the voltage increases significantly, it can lead to overheating of components, insulation breakdown, and eventually, damage or failure of the device. Many electronic devices today have a voltage tolerance range, and exceeding this tolerance can lead to permanent harm, such as burned-out circuits or shortened lifespans.

In summary, the correct answer accurately reflects the potential risks associated with a power surge, highlighting the danger of increased voltage that can cause serious damage to electrical devices.