Why Can Two 230V Motors Run on the Same 230V Supply Without Losing Voltage?

I am trying to understand the fundamental laws of electricity (I am a student at school currently). My question is a bit confusing for me: if you had two motors e.g 230v motors. Why is a 230v supply enough to power two motors if they both require 230v? 

Thanks in advance

You need to assume that the 230V AC supply has the capacity to supply large amounts of current and remain at 230V AC, in other words, the voltage source has a very low resistance(for AC you normally talk about impedance, as opposed to DC resistance).
The motors are placed in parallel across the 230V AC supply, so each is supplied with 230V AC, and provided the voltage source can supply the current demanded by both motors, then they will both run. Motors are rated in watts, knowing the voltage it is then possible to determine the current it will draw. Two motors in parallel on 230V AC, with a rating of 1000 watts each, would each draw 1000/230=4.4 Amps.
So you need to understand about the parallel operation of circuits for a start, and secondly, that a voltage source needs to have a very low resistance and sufficient current capacity to supply all of the devices placed in parallel across it.
Hope that's of some help,
cheers,
Richard

Fantastic, massive thanks.
Getting to know parallel and series circuits now.
Cheers
Nick

Thanks for sharing such helpful information to us. Reading your post, we can learn more in this field.