In 1830, which American scientist created the world's most powerful electromagnet, the Albany magnet, which could lift up to 750 pounds of metal at a time?

Correct option is C

The correct answer is (c) Joseph Henry
In 1830, Joseph Henry, an American scientist, created the Albany magnet, which was then the world's most powerful electromagnet. His development of the electromagnet was a significant advancement in the field of electromagnetism. The Albany magnet was capable of lifting up to 750 pounds of metal, demonstrating the practical potential of electromagnetic devices. Henry's innovations and experiments were crucial in the understanding and further development of electromagnetism, which later played a pivotal role in the development of various electrical devices and technologies.