I t depends.
Watts = Amps times volts.
40 amps x 120 volts =4800 watts or 40 Amps x 12 volts = 480 watts.
That depends on circuit voltage. 1 watt is equal to 1 volt times 1 amp.
It depends on the voltage and whether the lamps are actually 40 watts or 40 watt equivalent. Watts / volts = amps
4 volts and how many amps? Watts = amps x volts. It depends on the amount of current (in Amps) flowing at 4 Volts... See Ohms Law: Watts = Volts x Amps If you have 2 Amps flowing at 4 Volts you are dissipating/consuming 8 Watts. If you have 10 Amps flowing at 4 Volts you are dissipating/consuming 40 Watts.
watts = volts * amps--> Amps = watts/ volts therefore; 2000/220= 9.09 amps
Amps is a measurement of current. Watts (or kilowatts) is a measure of power. To get the power from the current, you have to know the electrical potential or volts used to produce the current. Amps × Volts = Watts (or Current × Electrical Potential = Power). Incidentally, a kilowatt is 1000 watts, so you'll have to divide your answer by 1000. e.g. if your volts is 40, then 25 amps × 40 volts = 1000 watts. 1000 watts (divided by 1000) is 1kw or kilowatt.
Watts equal volts times amps, which is 40 x 0.5 or 20 watts.
9000 watts is zero amps. Amps are the product of amps times volts. Without a voltage stated an answer can not be given. I = W/E, Amps = Watts/Volts.
There are zero watts in 730 amps. Watts is the product of amps times volts. As you can see without a voltage no answer can be given.
Watts = Volts * Amps Therefore: 70 Watts / 13.8 Volts = 5.07 Amps
Amps, volts and watts are interrelated, but you need to do a little math. Amps * Volts = Watts
How many Amps is the fridge pulling? Multiply the Amps by the 120V circuit you're plugging into and you'll get your Watts.
On this calculation I am assuming that the light bulb is using a 120 volt source. Watts = Amps x Volts. Amps = Watts/Volts, 40/120 = .33 amps. R = Volts/Amps, 120/.33 = 363.6 ohms resistance in the 40 watt light bulb.