Answer:
Power (P)
Step-by-step explanation:
In electromagnetism, power is defined as the rate at which electric energy is used:
where
E is the electric energy
t is the time
Power is measured in Watts (W), where 1 W corresponds to 1 Joule per second (1 J/s).
In electric circuits, power can be also rewritten as
where
V is the voltage drop on the element we are considering
I is the current flowing through the element
The power dissipated through a resistor is also written as
where I is the current through the resistor and R the resistance.