the battary have 1.5 v so i can get amper
but if i but wire from + to - the current movement
here i don't know if i don't touch the wire from + to - i want to connect from + to earth the current flow or not ?
i have this prolem when i put the battary on my mouth i sense the electric
Most battery circuits have no earth connection anywhere. In a battery lamp there is no earth, just a connection from battery + to bulb and from battery - to the other side of the bulb.
If one point is earthed, no current flows. You need two connections to earth to make current flow.
another question if i but the wire have 1 ohme so i can get the 1.5 A from this battary and versversa when i but the wire have 1 mili ohme
If you have an AA size battery, it has internal resistance of maybe 0.2 Ω. That resistance is not an actual resistor but it is resistance that comes from the materials the battery is made from.
The internal resistance limits the battery current, so you can only get 5 - 10 A from a small battery, even with a very low resistance load.
another one i want to know at my home 2 wires on the wall the first have electric and another zero so where the source of the another wire is it factory or earth ?
The electricity in your house comes from a transformer. That transformer is probably within 500m of your house and it transforms a larger voltage, maybe 3300 V, to the voltage supplied to you.
The output voltage of the transformer (probably 120 V or 230 V) is on two wires. Usually, one of those is connected to earth near the transformer. The current flows to your house on one wire and back on the other to the transformer. That is the complete circuit. It is separate from the high voltage current that comes from the power station
If you connect a load from the live wire to earth, the current will flow through the earth back to the earth connection of the transformer.