007bond-jb
Master Chef
- Joined
- Dec 29, 2006
- Messages
- 6,429
BchrisL said:Pigs On The Wing BBQ said:I thought it was: E = I * R or Volts = Amps * Resistance. One volt of electrical potential equals one amp of current times one ohm of resistance.
That is true. So if V=IR then Watts = (IR)X(I) or I^2 R
AC or DC. But with generators usually you don't worry about resistance, most things are rated in watts. So if you have a 2000 watt generator it should handle 33 60-watt light bulbs or 20 100-watt bulbs.
BTY a 120 volt 60 watt light bulb has a 240 ohm filiment. E^2/P = R
But you cant have 1500 watts of light bulbs burning & try to start a 500 watt motor with a 2000 watt genset unless it rated for 3000 surge watts, They are sold labled like this:
Total output 2000 watts continuous or 2500W surge
(the surge varies by brand & model) I think it has to do with the motors HP