Draw neat and labelled diagrams.

Energy transformation in solar thermal electric energy generation.

Draw a schematic diagram of solar thermal electric energy generation.

Give your opinion about whether hydroelectric plants are environment friendly or not?

Draw neat and labelled diagrams.

One solar panel produces a potential difference of 18 V and current of 3A. Describe how you can obtain a potential difference of 72 Volts and current of 9 A with a solar array using solar panels. You can use sign of a battery for a solar panel.

Write short note on Electrical energy generation and environment.

Electricity generation can sometimes be harmful for the environment.