Car Kettle

Browntoa

reminds me of this Simpsons Episode

Mankysteve

spinybif wrote: »

I considered one of these but when you work it out they can never be much use. Mains voltage 240v, Car voltage 12V. Therefore it will take 20 times as much current ( watts = amps X volts) - not possible without blowing car electrics or 20 times as long to boil the same amount of water in a car kettle as it will in your kitchen.

I now take a full flask of boiling water and the nescafe 3 in 1 sachets of coffee.

Just for fun let's do the math.

So let take a 3kw mains kettle so that's p=v*A so that's
3000=230(RMS)*a
3000\230=A
A=13A

Now at 14(typically voltage when engine running)

3000/14=213 A:eek:

So what kW can we actually pull from ciggi. Typically there fused at 15 amp.

So that is
V*A =p

14v*15= P
210 watt =p