Table of Contents
1. Problem 1 and its solution: involving the principle behind the photovoltaic cells
2. Problem 2 and its solution: involving a specific application of photovoltaic cells
3. Problem 3 and its solution: involving a specific application of solar heating panels
4. Problem 4 and its solution: involving a specific application of variation in solar radiation.
5. Problem 5 and its solution: involving a specific application of solar heating panels and variation in solar radiation.