Question

invented the alternating current (ac current) for electricity. andrew carnegie nikola tesla cornelius vanderbilt thomas edison

Explanation:

Nikola Tesla is known for his contributions to the development of alternating - current (AC) electricity. He invented the AC induction motor and developed the AC electrical system, which is widely used for power distribution today. Andrew Carnegie was a steel magnate. Cornelius Vanderbilt was a railroad and shipping tycoon. Thomas Edison is famous for inventions like the incandescent light bulb, but he was a proponent of direct - current (DC) and had a rivalry with Tesla over the current type for power distribution.

Answer:

Nikola Tesla