Question

In a hydroelectric power plant more electrical power can be generated if water falls from a greater height. Why?

Answer 1

As height increses potential energy increses hence speed increase hence there will be a greter torque hence more electricity

Answer 2

In a hydroelectric power plant more electrical power can be generated if water falls from a greater height because greater height means larger potential energy, and this larger amount of potential energy is converted into larger kinetic energy.