EngiRef / Formulas
Electrical Power (I²R)
Power dissipated in a resistance
DC Circuits
Source Details
Id
elec-power-i2r
Name
Electrical Power (I²R)
Discipline
electrical
Category
DC Circuits
Latex
P = I^2R
Description
Power dissipated in a resistance
Conditions
Resistive element; DC or RMS for sinusoidal AC
Variables
[
{
"symbol": "P",
"name": "Power",
"unit": "W",
"siUnit": "W"
},
{
"symbol": "I",
"name": "Current",
"unit": "A",
"siUnit": "A"
},
{
"symbol": "R",
"name": "Resistance",
"unit": "Ω",
"siUnit": "Ω"
}
]Solve For
P, I, R
Tags
power, current, resistance, joule
Is Custom
false