Multiple choice general knowledge

Most of Thomas Edison's inventions contributed to what area of technology?

  1. batteries

  2. telegraphy and telephony

  3. phonographs and sound recording

  4. electric light and power
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Edison's most significant and impactful inventions were in electric light and power, including the incandescent light bulb (1879) and the first commercial power distribution system (Pearl Street Station, 1882). While he worked in telegraphy, sound recording, and batteries, his electric light innovations had the widest societal impact and commercial success.

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