The electric power is given by:
P = V · I
Where V is the voltage and I is the current.
Corresponding units:
watt(W) = volt (V) · ampere (A)
The power can also be determined by using the following formulas:
P = I2 · R ↔ R = P / I2 ↔ I = √(P / R)
P = V2/R ↔ R = V2/ P ↔ V = √(P · R)
