" wrote:
On Apr 21, 9:30 pm, gregz wrote:
" wrote:
On Apr 21, 2:53 am, harry wrote:
On Apr 21, 12:55 am, Mark wrote:

On Apr 20, 7:36 pm, DerbyDad03 wrote:

I like using my slow cooker, but it takes way too long to cook stuff. Some
foods take 6 - 8 hours. Can you imagine such a thing?

I wonder if I should hook it up to a 240 circuit. That should cut the
cooking time in half.

i realize this is a joke/troll, but just to play along..

Watts = V^2/R

so if you hook it to 240 instead of 120, it would take 1/4 the time.

Mark

Idiot.
Watts = Volts X Amps X PF
So it would be twice the watts if the volts were doubled.

Also.
Watts = amps X amps X resistance.

As usual, the village idiot has once again demonstrated his
incompetence.
Mark has it right. With a resistance load, doubling the voltage
increases the
power (watts) by 4. That is because of the simple fact that doubling
the
voltage also doubles the current. 2 x 2 = 4.

Got it now harry, or as usual, do you want to argue on and further
make an ass of yourself?

Your all wrong. The element will heat increasing resistance. Power will be
less than 4 times. My cooker will start to boil liquid around the sides
after a while. I don't think there is a thermostat. I'm guessing the low
uses a series diode.

Greg- Hide quoted text -

- Show quoted text -

That's true if you want to get into second order effects. But this
isn't
a light bulb filament. It's a heating element in direct contact with
water,
so the temp of the element probably isn't going to change
dramatically. For example, for heating elements for spas
and hot tubs, the rated power is given as 4X when going
from 120V to 240V. The one in my spa is rated at 1500W
at 120V, 6000W at 240V. With the cooker you'd see some
increase in resistance and it wouldn't be exactly 4X, but it
would be in the ballpark.

My cooker has a removable ceramic pot. There is air between the pot and
inner metal wall, and the heater is on the inside. For the pot to get to
boiling, the air must be a lot hotter. I could try measuring it, but
probably not.

Greg