Power Measurement

So, dimensionally, it is expressed as joules per second, J s

. According to this general definition, electric power is the electric work or energy dissipated per unit time and, dimensionally, it yields:

(3.1)

where J = Joules s = Seconds

C = Coulombs V = Volts A = Amperes

The product

voltage times current

gives an electrical quantity equivalent to

power.