watts to amps?

Thanks for that, I was off searching the web for the answer.... should have done it before.... well it gave you a chance to show your knowledge on the subject.
Got the same answer too!

Cheers Rowler (dave)

Almost correct .. but no quite.
E=IR

i.e Electromotive force (E) = Amps (I) x Resistance (R)

Note E can be taken to mean V

Absolutely correct formula but without a value for R you cannot arrive at the answer.

Try P=VI

i.e. P (Power (Watts)) = Voltage (V) x Amps (I)

Hence 70 = 12 x I or I = 70/12 = 5.8333

Correct answer but stuffed if I know how ya got it.

................. ;-D

CheersFidei defensor

Rosco

sorry been pulling the plow for to long not using grey matter

I looked up some web page & it said.... Watts/Volts=Amps
Same answer too :-)

Thanks Rowler (dave)

Ya get that ... knock off and have a beer.

CheersFidei defensor

Rosco

If you want to be *really* pedantic you got to allow for that a 12V battery is pretty flat if you measure 12V on the terminals.
Try doing the calculation again, using 12.6V as per fully charged battery.
Even more pedantic, if you run the fridge while the engine is charging the battery, use 14 - 14.5V for your calculation.
Klaus

Brian

Certainly do .... born and bred ... should I say dragged up.. in these parts.

Never worked in Siderley. Great place to visit ... wouldn't want to bloody live there tho'

..............;-))))))))))

Cheers
Fidei defensor

Rosco

Thanks for the reply Rosco. My mate Ross was (is, me as well) a sparky, and you sound like one.

Catch you 'round
Brian

Worse .... ginger beer.........................Fidei defensor

Rosco

Can't help bad luck.

Brian