4000 ma is equivalent to 4 amps 1 amp is 1/1000 ma/hour means amp or ma per hour.
About 11,000
Ohm's law: Volts = Amps * Ohms, or Amps = Volts / Ohms 12 volts / 0.5 ohms = 24 amps
There are .42 amps in 420 mA. Equation 420/1000 = .42 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.
4000
4000
4000 watts on a 240 v system would be 4000/240 amps, 17 amps.
4000 A is 400 Amps.
There are zero watts for 4000 amps. The formula for watts is; W = A x V, so you see a value for voltage has to be stated to give an answer.
Double you answer for 2000 amps and for times your answer for 1000 amps.
There is not enough information to answer your question directly... In order to determine how many volts it takes to make 4000 watts, you also need to know how many amperes there are. That is because watts is volts times amperes. For example, if you had a 120V system, you could divide 4000 watts by 120 volts to get 33 1/3 amperes.
The equation that you are looking for is I = W/E. Amps = Watts / Volts.
Amps x volts equals watts...200 amps at 12 volts would be 2400 watts...add a few more because. the inverter efficiency is not 100 percent...
In normal simple circuits WATTS = VOLTS x AMPS So if you use a 12V car battery 4 amps is 48 Watts American 110V mains 4 amps = 440 Watts English 240V mains 4 amps = 960 Watts
2685
5000 (watts) /120 (volts) = 41.6 amps , but to be safe you should allow 1000 watts margin for peaks, so 4000/120 is 33.3amps, although peaks might sometimes get higher than 5kw
The answer depends on 4000 WHAT!