back to basics higher the volts lower the amps?

[Crosswire]

good now i can explain to my boss that higher voltage doesn't equal higher current

But is does.

Assume resistance remains unchanged e.g. 10 ohms

230 volts divided by 10 ohms = 23 amps

2300 volts divided by 10 ohms = 230 amps

so the current in a conductor is directly proportional to voltage, and inversly proportional to resistance.

Can't remember who said that........

 

[SirKit Breaker]

Static electricity is both high voltage and high current, however the duration is very short.

But it has killed......

 

[GStueyXR]

But it has killed......

Really ? Cant see how that is possible unless the statically charged thing was a massive capacitor

 

[pushrod]

lightning is an example of a static discharge and that can certainly kill.

 

[GStueyXR]

lightning is an example of a static discharge and that can certainly kill.

But clouds have massive capacitance...

 

[Risteard]

lightning is an example of a static discharge and that can certainly kill.

Lightning?

According to BS7671 that is an "Overvoltage of Atmospheric Origin".

 

[pushrod]

Lightning?

According to BS7671 that is an "Overvoltage of Atmospheric Origin".

Are we getting into semantics? Are you saying that lightning is not an example of a discharge?
There is of course there is a voltage associated with it.

BS7671 might be the bible of electricians, but i don't think it is held in such high reverie by physicists.

 

[Risteard]

No. Was just saying that the IEE have a much fancier term for lightning!

 

[pushrod]

No. Was just saying that the IEE have a much fancier term for lightning!

Yes they do

-"did you see that thunder and over voltage of atmospheric origin storm last night , it rained feline and canine small mammals afterwards"

 

[JUD]

Yes they do

-"did you see that thunder and over voltage of atmospheric origin storm last night , it rained feline and canine small mammals afterwards"

Shouldn't that be "precipitated"

 

[pushrod]

Shouldn't that be "precipitated"

It certainly should have been

 

[blackiel]

Voltage is the water pressure...Amps are the water bubbles...More pressure..more bubbles

 

[Scud]

Voltage is the water pressure...Amps are the water bubbles...More pressure..more bubbles

Not quite. Using the water analogy, which is one I use to explain electrical terminology to those with no electrical background, voltage would indeed be the pressure pushing water through a pipe, but the diameter of the pipes, or a turbine introduced into the system would equate to resistance, which would affect the rate of flow of water, the rate of flow being the current (Amps).

 

[lister]

So now they have lowered the domestic voltage down to 230 in some areas, this equates to more amps used, so my meter turns quicker and my electric bill gets bigger!

 

[Sintra]

No you use less amps.

I=V/R

Resistance will remain constant so for an appliance with a resistance of 18 ohms

240/18 = 13.33A

230/18 = 12.77A