Where does Resistance come into play then?
Resistance, as the name suggests, resists the flow of current. This happens because even conductors in real world do not have ideal properties and atomic structures. This makes them prone to resisting the flow of electrons through them.
This property of materials can in turn be utilized to control the amount of current flow according to requirement. Resistor is a device used to implement control. It is measured in Ohms.
So, what is Electric Power then?
Electrical power is the rate of transfer of electric energy by a circuit per unit time. Basically, electricity is consumed by a circuit in 1 unit of time, therefore, unit of time is considered to be hour usually. The electricity consumed is calculated by multiplying voltage with current. The unit of Electric power is Watts (w) which is also considered a product of Ampere (A) and Volt(V).
The Final conclusion
In conclusion, the easiest way to understand workings of electricity is to simply compare it to the flow of water in a simple plumbing system.
What about the relationship between these then?
These two triangles namely the POWER TRIANGLE and the OHM’S LAW TRIANGLE can easily relate the quantities together in a organized manner.