Please judge me if I'm right or wrong with those things:

An electric circuit can have AC/DC

DC is from a Battery and basically flowing in one direction

AC is when an electric motor spins and generates electricity, thus alterning current. (Motor spins and constantly passes magnets, causing constant surges and drops in the current, hence its altering)

Voltage is basically the load of a circuit. I'd compare it with a bicycle, where the Voltage would be the pressure you'd apply on your pedals to move the chain.
While Ampere is the amount of chainpieces go past a certain point per second(or also the speed of how fast you cycle).

This is why Higher Voltage is not Dangerous to humans or devices that only need a certain voltage. Because Again it just determines the force. You could power 1,2,3 Bicycles at the same time if the pressure is enough. And if it is just 1 bicycle, it'd still just run normally without breaking.

While If you increase the Ampere, you'd be increasing the amount of electrons per seconds. For humans it'd mean that it'd fry the nerves and surrounding tissue.(for the bicycle it'd mean that you are cycling so fast that the friction melts the chains? dunno if thats a good example) I guess too high Amperage would also fry wires if i'm right because of Resistance which is measured in Ohm. Or cause troubles in electrical devices where the increased amperage leads to increased strength of electric circuits, causing sparks between a circuit, destroying electronics.

You need High ampere for Powerlines(usually high ampere also comes with High Voltage).


Am I right so far with those explanations?