Answer : current , voltage and resistance
Step-by-step explanation: Three factors are used to power.
Current , voltage and resistance
When we find the power then we need the voltage, current and resistance.
We use the ohm's law and find the power
Firstly we will use the ohm's law

Now, the power is
...(i)
Put the value of V in equation (i)

This is the formula of power and factors of the power is current , voltage and resistance. Watt is the unit of power.