alternating current
The phrase 'corriente alterna' in Spanish translates to 'alternating current' in English. It is a type of electric current in which the flow of electric charge periodically reverses direction. This is in contrast to direct current (DC), where the flow of electric charge occurs in only one direction. Alternating current is the form of electric power that is delivered to businesses and residences. It is also commonly used in electric power transmission and for domestic and commercial applications.
The alternating current is converted into direct current in the computer's power supply.
The sentence is giving information about the transformation that happens within a computer's power supply. In this context, 'corriente alterna' is referring to the type of electrical current that is being converted into direct current ('corriente continua' in Spanish).
The electronic devices in my house run on alternating current.
This sentence is explaining the type of electrical current that the speaker's home electronic devices use. Here, 'corriente alterna' is referring to the type of electrical current that powers electronic devices.
If you can't find an alternating current outlet, your laptop won't be able to function.
This sentence provides a hypothetical situation where a laptop wouldn't be able to function if it couldn't connect to an electrical outlet providing alternating current. 'Corriente alterna' is used here to refer to the standard type of current provided by most power outlets.