4.5 describe a variety of everyday and scientific devices and situations, explaining the fate of the input energy in terms of the above relationship, including their representation by Sankey diagrams
Whenever we are transferring energy, proportion of input energy is wasted. Like a lamp has input energy of 100J. It uses 10J to give light and the other 90J is wasted as heat.
efficiency = 10J / 100J = 0.1
In a Sankey diagram it is presented like this:
