|
 Power =
voltage x current
In Symbols:
P = V x I
With units:
P (W) = V (V) x I (A)
W: Watt - V: Volt - A:
Ampere
|
|
|
You need to know how to
calculate power from the above equation.
Higher tier only: you need
to be able to use this equation to calculate voltage or current.
.
|
Power is the rate of energy transferred.
Rate of means
change with time.
Energy transfer =
power x time
Energy is measured in Joule.
|
