Question

you have a desktop computer that you want to upgrade. you add several internal and external components. you realize that you need to ensure that your power supply can support all of these new components. which of the following power - supply ratings best describes the rating you would use to determine this?
ac voltage rating
watt rating
resistance rating
dc voltage rating

Explanation:

The watt rating of a power supply indicates the amount of power it can deliver to the components. To ensure it can support new internal and external components, the watt rating is crucial as it measures the power - handling capacity. AC and DC voltage ratings are about the type of electrical current and its voltage level, and resistance rating is about how much a component resists the flow of electric current, which are not the best for determining power - supply support for new components.

Answer:

Watt rating