Conducting foreign relations is an

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

12000j is work done

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.

statement #3 on andre"s list is false.