How electricity is generated Reviews Exercises

5.10 How electricity is generated Reviews Exercises

1. Define the term “generator."
2. State the three major parts of a direct current generator.
3. With the aid of a sketch, explain how e.m.f. is induced in a direct current generator.
4. Explain how a simple direct current generator may be improved for greater e.m.f. induction.
5. Define the term ''piezoelectricity."
6. With the aid of sketches, explain how thermocouples may be used to produce a higher voltage.
7. Explain how solar cells produce electricity.
8. List three applications of solar cells in everyday life.
9. State two uses of geothermal energy.