I am doing a paper on Nikola Tesla and i know he invented this and i know it is important, but why?
Making things move. Washing machine dryer fans refrigerator Fan in PC or TV elevators and more .
You will see single phase AC induction motors used mainly in the residential environment where 3-phase power is not available or is too expensive. Uses of such motors are: air compressors, log splitters, press, refrigerators, air conditioner, single phase industrial machines, pressure washer, etc.... You can purchase single phase motors up to 15 horsepower. Also, AC motors are more powerful than combustion engines, but you do not see many high horsepower single phase AC induction motors used in the home because the 230 volt circuit is not commonly used in the home except for the stove, hot water heater, or air conditioner. The motors are mostly limited to 115 volt circuit, which limits horsepower to about two. So combustion engines are used more often for the big jobs, where as the small jobs are left to the AC motors.
AC motors are used for anything and everything. Way too much to list. Electrical generators are basically syncronous motors that output electricity by motion, instead of creating motion from electrical current. So ask yourself how life would be today without electrical power.