To whom are you making that suggestion?I would suggest you think more simply.
Indeed.If a voltage is applied to something that has a resistance a current will then flow which is roughly proportional to the voltage applied.
You arithmetic leaves a lot to be desired - Mr Ohm would not be impressedSo if 230v is applied to a 10 ohm resistor then a current of 10 amps will flow.
All true, but what is the relevance of that to this discussion?When cables are used to carry higher currents their current carrying ability depends partly on how they are mounted. For example if closely fitted to a metal cable tray they can carry a higher current as the metal helps to carry away the heat produced. ... If the cable is run under loft insulation it cannot dissipate much heat and need to be significantly de-rated.
Kind Regards, John