Question

what is the answer of this question with the steps

Answer 1

earting is a process connecting the equipment with earth.over voltage is come it transmit to earth and earth absorb the extra voltage .and making user and equipment safe

Answer 2

green insulation is called earth wire connected to metal plate deep in the Earth near house. this is a safety measure for appliances having metal body (example table fan ) because it provides low resistance conducting path of current it ensures that any leakage of current to the metal body of the appliance keep its potential to that of earth and user may not get electric shock