One major reason why electrical appliances in homes are normally earthed is that the———–
-
person touching the appliance is safe from electric shock
- appliances are maintained at a higher p.d. than the earth
- appliances are maintained at a lower p.d. than the earth
- appliances are maintained at the same p.d. with that of the earth
The correct answer is: A
Explanation
Earthing of an electrical appliance meant the outer metallic case of appliance is connected with earth, wire which is welded to the end of a copper rod and it is burned in the ground. It save the appliance during short-circuiting by passing Excessive current to earth.