1.2 hp = 894.839846 watts
Watts is volts times amps, so 12 x 30 = 360 watts
The formula you are looking for is I = W/E. Amps = Watts divided by Volts.
450 watts divided by 120 volts equals 3.75 amps450 watts divided by 12 volts equals 37.5 ampswatts divided by volts equals amps
Wrong question. I assume that this pertains to a car and not a house. All modern cars run on a 12-volt system. So what I think you meant to ask is "how many AMPS in 90 watts at 12 volts?". Watts divided by volts equals amps, so 90 watts divided by 12 volts equals 7.5 amps. If you are trying to wire in a car stereo amp, better go with a 10 amp fuse.
Ohms does not equal watts. You need to know what voltage is across the resistor to determine how many watts it is drawing or how many watts the resistor should be rated for.Power is the voltage across the resistor SQUARED divided by the resistance. If this 4 ohm resistor has 12 volts across it then the watts power is (12 x 12) / 4 = 36 watts.1 Watt equals 1 Volt times 1 Amp.
There are zero milliamps in 12 watts.
For calculation purposes there are 746 watts in one horsepower.
Watts = volts x amps x power factor Power Factor is 1 for resistive loads and decreases for other loads like motors. Maximum watts would be 12 x 220
72 watts
volts times amps equal watts. So 12 volts times ? amp equals 1.5 watts. The current is 1.5/12 amps, which is 1/8 amp.
As watts equals volts times amps (ohms law simplified) you are missing part of the equation.. Let's say you are asking about how many watts is 1 amps at 12v then... If W = V x A then 1A at 12v = 12 watts
Watts = Volts x Amps, if you use your algebra you will find that it's approx 14 Amps.