Sounds like it could be a bad alternator, but I can't be sure based only on the question.
Can also be a loose alternator drive belt.
Cars don't have generators.
Unknown, but probably not. The battery will probably die first and it is expensive to replace.
yes they use gasoline cars but they do sell battery cars in Japan
Ther wasn't a battery in the first cars.
It could be idled too slowly. Newer cars can sense the extra load produced by the A/C and will speed up the engine.
This will not work on many OBD (compterized) cars. The engine will die shortly after disconnecting the battery cable. The computer must be power by the battery.
In most cars the battery is in front of the engine. In some cars, it is beneath the truck sometimes with the spare tire.
Control the flow of battery's power commonly used in cars
In most cars, wherever the battery is physically located.
Battery powered remote control cars are more efficient and economical.
hybrids
No.