[amp_mcq option1=”Incandescent lamp” option2=”Phonograph C (Gramophone) and microphone” option3=”Carbon telephone transmitters” option4=”All of the above” correct=”option3″]<\/p>\n
Thomas Alva Edison was an American inventor and businessman, who has been described as America’s greatest inventor. He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. These inventions, which include the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb, had a widespread impact on the modern industrialized world. He was one of the first inventors to apply the principles of mass production and teamwork to the process of invention, working with many researchers and employees. He established the first industrial research laboratory.<\/p>\n
Edison was born in Milan, Ohio, and raised in Port Huron, Michigan. He was largely self-educated, acquiring knowledge by reading extensively and by experimenting. He began to develop an interest in electricity at a young age, and his first invention was an electric vote recorder. In 1869, he moved to New York City, where he worked as a telegraph operator. He began to develop his own inventions, and in 1876, he founded the Edison Electric Light Company. The company developed and marketed the electric light bulb, which revolutionized lighting and had a major impact on the development of modern cities.<\/p>\n
Edison also developed the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb. He was one of the first inventors to apply the principles of mass production and teamwork to the process of invention, working with many researchers and employees. He established the first industrial research laboratory.<\/p>\n
Edison was a prolific inventor, holding over 1,000 patents. He was also a successful businessman, and his companies made him a wealthy man. He died in West Orange, New Jersey, in 1931.<\/p>\n
The correct answer to the question “Which of the following inventions were done by Thomas Alva Edison?” is:<\/p>\n
D. All of the above.<\/p>\n
Edison invented the incandescent lamp, the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb. He was also a successful businessman, and his companies made him a wealthy man.<\/p>\n","protected":false},"excerpt":{"rendered":"
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