It is capacitor
A capacitor blocks DC but allows AC.
In power supplies both coils and capacitors are used to smooth the pulsing DC output.
An electrical generator, these can produce AC or DC electric current.
Quite a few devices can be used directly as DC electric generators. This question seems to be structured to ask for a selection from a list - but the list is not provided.
capacitor is component used to store and release the electric charge.and also it has feature to block the dc but bypass ac.and inverter is device which converts ac to dc and then again ac
input voltage is strictly according to applications. If use 12V dc adapter power 5V dc device, the 5v dc device would be damaged.
Always DC.
a device which changes ac to dc is known as 'conevrter' a device which changes dc to ac is known as 'inverter'
The panel itself produces DC and if it is connected to mains electricity it needs a separate converter to change the current to AC.
The easiest way to control any electric current to any device is with the inline use of either a manual or electric reistate.
Panasonic and Phillips manufacturer electric shavers (with oscillating or rotating blades) that operate on AC or batteries. However, most electric shavers come with a DC powered device.
A galvanic isolator is a device which blocks low voltage DC currents coming on board a boat. The reason why these currents are blocked, they cause corrosion to metal underwater.