1 : Surface area is a country's total area, including areas under inland bodies of water and some coastal waterways. 2  Irrigated land: The number of square kilometers of land area that is artificially supplied with water. 3  Population density: People per square kilometre, in 1999. 4  At this time the world average was 14.42.
A ground fault is an inadvertent contact between an energized conductor and ground or equipment frame. The return path of the fault current is through the grounding system and any personnel or equipment that becomes part of that system.
Originally Answered: What is the difference between earth fault and ground fault in power system? Even though 'Ground' also refers to a common return path in a circuit, the Earth fault and Ground fault refer to the same fault- fault which gives lethal shock if humans touch the body metal of the faulty equipment. Basically they are the same. Both are faults to earth, ie a large current flows to earth.