Milli amps is a measure of current whilst watt is a measure of power.
The missing element is voltage as the formula is:-
Power = Voltage * Amps
ie power in Watts is the product of Volts (in Volts) times Amps (in Amps)
Sorry, you are comparing apples to Oranges. 2 volts at 2 amps is 4 watts. the formula is volts times amps equels watts. you would need to know two of the variables to calculate the third.
Wattage is the product of amps times volts. W = A x V.
Milliamps are dangerous Less than 1/2 milliamp no sensation1/2 to 2 milliamps Threshold of perception2 to 10 milliamps muscular contraction5 to 25 milliamps painful shock (may not be able to let go)Over 25 milliamps Could be violent muscular contraction50 to 100 milliamps Ventricular fibrillationover 100 paralysis of breathing. possibily 1-2Amp/s can make your heart stop. and kill you. Not the amount of voltage
20,000 watts
kilohms.
A maximum of 25 watts. On the line side that would be 25w/110 or about 227 milliamps; on the low voltage side, say 12 volts, it would be 25W/12v or 12.5 amps.
Milliamp dangersLess than 1/2 milliamp no sensation1/2 to 2 milliamps Threshold of perception2 to 10 milliamps muscular contraction5 to 25 milliamps painful shock (may not be able to let go)Over 25 milliamps Could be violent muscular contraction50 to 100 milliamps Ventricular fibrillationover 100 paralysis of breathing. You can see above, if the circuit was not disconnected the damage that milliamps currents can cause. 2 to 10 milliamps will cause muscular contraction but the circuit is opened in 1/40th of a second so that no damage will be caused. The electronic metering of the current at a level of 5 milliamps (.005 amps) was picked by convention as a safe level to trip the breaker. If there is a difference of 5 milliamps of the current entering the circuit and leaving the circuit, the logic states that the current must be going some place else which could be detrimental to someones health, so the breaker shuts off the current to the load.
There are zero milliamps in 12 watts.
The batter uses 5 Volts for charging and it takes 1 hour to fully charge your iphone which is 7 Watts.
For a resistive load Watts = Volta * Amps. Therefore, you have 1/4 amp or 250 Milliamps (250ma)
Watts = Amps x Volts. Milliamps to amps move the decimal place three places to the left.
During operation, a typical cd drive will draw 150 milliAmps while playing and about 600 milliAmps during writing. cd drives are attached to the PSU via a 12 volt rail, so this equates to 1.8 to 7.2 watts.
.183A or 183 Milliamps. Power/Watts Divided by Voltage will give you Amperes
Watts = amps x volts, Amps = Watts/Volts, 65/240 = .27 amps or 270 milliamps
It depends on the voltage. watts = amps x volts So if the potential difference (another way of saying voltage) was 1V, then a current of 1 Amp, or 1000 milliamps, would result in a power of 1 watt.
There are 0.075 amps in 75 milliamps.
1 amp = 1000 milliamps so 1700 milliamps = 1.7 amps.
There are 1,000 milliamps [mA] per amp.
1,000 milliamps = 1 amp 180 milliamps = 0.18 amp