New York. The chief executive officer (CEO) of Nvidia, a leading company in the artificial intelligence (AI) chip manufacturing sector, Jensen Huang, has unexpectedly resigned from his post.His resignation, following allegations of extramarital affairs, has created a significant stir from Silicon Valley to Capitol Hill.Concerns have been raised by US lawmakers demanding an investigation and questioning of Huang after suspicions surfaced about his relationship with a Chinese spy. Nvidia, which has become one of the world's most valuable companies with the rapid expansion of AI technology, has lost $550 billion in market value within five days of this incident coming...