Hello Wasim,
To answer your question, we need to define first Ohm's Law and Electrical Power and their associated formulas.
Ohm's law states that the current (I) through a conductor between two points is directly proportional to the potential difference (V) across the two points.
It is sometimes easier to remember Ohms law relationship by using pictures. Attached is an image of the three quantities of V, I and R have been superimposed into a triangle (affectionately called the Ohms Law Triangle) giving voltage at the top with current and resistance at the bottom. This arrangement represents the actual position of each quantity in the Ohms law formulas.
Electrical Power, ( P ) in a circuit is the amount of energy that is absorbed or produced within the circuit. The quantity symbol for power is P and is the product of voltage multiplied by the current with the unit of measurement being the Watt ( W ).
Again, the three quantities have been superimposed into a triangle this time called the Power Triangle with power at the top and current and voltage at the bottom. Again, this arrangement represents the actual position of each quantity in the Ohms law power formulas.
