Not only for AC. Some applications use capacitors to hold a steady charge for periods of time.
First, the alternating current is filtered through a rectifier diode, that is, a device that lets the current pass only in one direction. This will produce a current that goes only in one direction, but that pulsates. To smooth this out, i.e., to convert it into a relatively uniform current, capacitors are used as "buffers".
A rectifier is used to convert alternating current (AC) to direct current (DC). The rectifier allows current flow in one direction only, converting the back-and-forth flow of AC to a constant flow in DC circuits.
in the generating stations we generate only alternating current...this is the best example
Depends whether Direct Current or Alternating Current. Only Alternating Current produces magnetic field.
An AC Adapter converts direct current into alternating current. It is handy when you only have 12 volt battery current and you need to use power tools which only run on alternating current.
Alternating Current which reverses its direction regularly at certain intervals Direct Current flowing continuously in one direction only
UPS (UNINTERUPTED POWER SUPPLY ) Its charg only AC current (Alternating current). and inverter provide current DC TO AC ( Direct current to Alternating current)
A transformer can only increase or decrease the voltage of an alternating current, and it is called step-up transformer or step-down transformer accordingly.
The only thing that can be concluded about alternating current is that it alternated at 50 or 60 Hz throughout the grids around the world.
Induction occurs only with alternating current.
There are only two kinds of electricity, direct current and alternating current. All power plants now produce alternating current
DC direct current is be coming more popular than AC alternating current AC is not really suitable for some devices maybe your device is needing low current