Watt
From bildr
A Watt is a measure of electrical power. The power through a circuit in Watts is given by the voltage * current.
Equations
- P = U×I
Could also be written as
- I = P÷U
- U = P÷I
Where P is Power, I is Current and U isVoltage
These equations is closely related to and is often used together with Ohm's Law
Example
A 110 Watt bulb connected to the wall in the US (110 volts) would be drawing 1 amp(current) . 110volts * 1amps = 110 watts.
Submultiples | Multiples | |||||
---|---|---|---|---|---|---|
Value | Symbol | Name | Value | Symbol | Name | |
10^{−1} W | dW | deciWatt | 10^{1} W | daW | decaWatt | |
10^{−2} W | cW | centiWatt | 10^{2} W | hW | hectoWatt | |
10^{−3} W | mW | milliWatt | 10^{3} W | kW | kiloWatt | |
10^{−6} W | µW | microWatt | 10^{6} W | MW | megaWatt | |
10^{−9} W | nW | nanoWatt | 10^{9} W | GW | gigaWatt | |
10^{−12} W | pW | picoWatt | 10^{12} W | TW | teraWatt | |
10^{−15} W | fW | femtoWatt | 10^{15} W | PW | petaWatt | |
10^{−18} W | aW | attoWatt | 10^{18} W | EW | exaWatt | |
10^{−21} W | zW | zeptoWatt | 10^{21} W | ZW | zettaWatt | |
10^{−24} W | yW | yoctoWatt | 10^{24} W | YW | yottaWatt | |
Common prefixed units are in bold face. |
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