1) Explain different types of secondary cell and describe the construction, working and uses of the Ni Cd cell.
2) Explain the benefits of the fuel –cell.
3) Describe the construction, working and uses of the Dry –cell.
4) Write a brief note on the electrode- potential.
5) Describe the term: Dielectrics and insulators.
6) Explain the various classifications of the insulating materials.
7) State the properties and uses of glass wool and also thermocole.
8) Explain the different properties and uses of the Teflon plastics.
9) State and explain the gaseous insulating materials.
10) Explain the properties and uses of the polystyrene.