IB Physics Extended Essay Exemplar: How does varying the density of water, from 1000 kg m-3 to 1333 kg
m-3 by adding salt of mass 0kg, 0.5kg, 1kg, 1.5kg, 2kg to 6 litres of water, used to move a Pelton turbine, effect the Potential Difference generated over a period of 2 minutes? | RevisionDojo