Electricity is a marvelous thing for it gives us so many comforts. It gives us light, heat, helps to cook food, keep food cool and many other things, but we have to be very careful in its use for it may cause fires.
Difference between the electrical conductivity of diamond and graphite are discussed as follows…
Electrical discharge through gases is studied by using a specially designed glass tube commonly called as a discharge tube. It consists of a cylindrical glass tube having a side tube, and two metallic electrodes one at each end.
Earthing is a safety device used to prevent a shock due to leakages arising from weak insulation, breaking of the element or otherwise.