No. A ground wire is a non-current carrying conductor and cannot be used for hot or neutral.
Ground wire to neutral wire.
If there is no ground wire connect the ground wire to the neutral wire.
Yes, as long as it is the same size wire or larger as the hot and neutral wires.
In Bangladesh the color of live is green and neutral is blue and ground is black.
Ideally ground and neutral should be at the same potential, but as there is current in the neutral wire and no current (normally) in the ground wire there can be a difference. I have personally measured over 25 VAC on the neutral relative to ground in some systems.
If a "hot" wire contacts the "neutral" or ground wire, electrical current flows to the ground.
'Can' yes. 'Should' no. <<>> Never use a green wire for a neutral. It is colour coded for a reason and that is to protect the people that work on electrical equipment. If you turn a ground wire into a neutral it then becomes a current carrying conductor. There are times in the electrical trade when grounds have to be disconnected and if it is used as a neutral and the tradesman is holding one end and touching a grounded object a shock will occur. Again never use a green ground wire as a neutral.
Ground wire can be appropriately bonded to the neutral and cabinet at the service box by connecting the neutral and ground wires from the feeder wires to the neutral bus bar and the ground terminal located on the same cabinet at the service box. White wire (neutral) must be connected to bus bar and bare wire must be connected to ground terminal in the same cabinet.
Some older wire does not have a ground. All you can do in that case is use a jumper wire to connect the ground to the neutral.
Yes, if there in no ground wire that is acceptable on a home with no ground wires.
Typical home wiring will have one hot wire, one neutral wire, and one ground wire per circuit. An open neutral would indicate that the neutral wire, usually white wire, is broken.