Myth no. 6: an electric generator creates electricity
It seems like a pure result of the wording: if it’s called a generator, it’s because it generates electricity, right?
Reality. As incredible as it may seem, generators do not create electricity by themselves. They merely transform it: mechanical energy transforms into electrical energy, causing the electrons of the cables and circuits to flow.
Myth no. 7: electricity travels at the speed of light
This is another apparent truism that turns out not to be true. If it is light, it must travel at the speed of light, right?
Reality. The speed of electricity depends on the means on which it travels. Inside a cable, there are many resistances. Though when electromagnetic waves travel on a suitable conductor, they travel at speeds close to the speed of light (between 50% and 99%), electrons are much slower.
Myth no. 8: an apparatus that is turned off does not consume electricity
Luckily, fewer and fewer people believe this myth, given that the stand-by or ghost consumption has started to be recognised in all homes.
Reality. Even if it's turned off, it can remain plugged in (or worse: with a red pilot light turned on). This is called stand-by or ghost consumption. In some cases, there are apparatuses that consume practically the same when they are turned on and on stand-by. For example: cell phone charges, televisions, microwaves, coffee makers, satellite TV decoders...