I'm pretty sure that electric guitars get the vibration of the strings and use that to emit a certain note. DON'T QUOTE ME ON THAT
There is no purpose in converting electricity to electricity, I'm sure you meant to ask something else. <><><> It is frequently useful to convert electricity from one form to...
with the help of an electric motor.
You can use the electricity to pump water up into a high reservoir, where it then has potential energy
Yes.