Armoured Electrical Cable

[JohnW2]

I would suggest you think more simply.

To whom are you making that suggestion?

If a voltage is applied to something that has a resistance a current will then flow which is roughly proportional to the voltage applied.

Indeed.

So if 230v is applied to a 10 ohm resistor then a current of 10 amps will flow.

You arithmetic leaves a lot to be desired - Mr Ohm would not be impressed

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.

All true, but what is the relevance of that to this discussion?

Kind Regards, John

 

[chivers67]

I agree John!

(Agile V = IxR so I think more likely 23 Amps would be flowing for a 10 Ohm Resistor at 230 Volts!)

 

[bhm1712]

Cables don't produce amps, (current), devices such as washing machines, kettles, TV's etc are the things that produce current.

do they really!?

 

[winston1]

So if 230v is applied to a 10 ohm resistor then a current of 10 amps will flow.

23 amps actually.

 

[EFLImpudence]

do they really!?

Well, if they are disconnected the current stops, so...

 

[Taylortwocities]

Well, if they are disconnected the current stops, so...

Really? I’m lost. I thought they’d sit there pumping current out and waiting for a circuit to send it to.