Watts = Volts × Amps
Watts = Volts² ÷ Ohms
Watts = Amps² × Ohms
Power (W) = Energy (J) ÷ Time (s)
Use W = V × I for electrical power
Use W = V² / R when voltage and resistance are known
Use W = I² × R when current and resistance are known
Watts = Volts × Amps
Watts = Volts² ÷ Ohms
Watts = Amps² × Ohms
Power (W) = Energy (J) ÷ Time (s)
Use W = V × I for electrical power
Use W = V² / R when voltage and resistance are known
Use W = I² × R when current and resistance are known