Who invented the electric light bulb?

Who invented the electric light bulb?

• A. Nikola Tesla
• B. Thomas Edison
• C. Alexander Graham Bell
• D. Michael Faraday

Answer: (B)

The main concept here is understanding who is credited with making the electric light bulb practical and usable in everyday life. Thomas Edison is the best answer because he and his team focused on creating a durable, longer-lasting incandescent bulb and, crucially, developing a workable electrical system to power it. They experimented extensively to improve the filament, ultimately using a carbon filament and creating a near–perfect vacuum inside the bulb, which greatly extended its life. Edison’s work didn’t just stop at the bulb; he helped bring together the necessary components—production, distribution, and commercialization—so electric lighting could be used in homes and businesses widely. Other famous figures contributed to electricity or related technology, but they didn’t produce the practical incandescent bulb and the accompanying lighting system in the way Edison did. Nikola Tesla is known for advancing alternating current systems, Alexander Graham Bell for the telephone, and Michael Faraday for foundational discoveries in electromagnetism and electrochemistry.

The main concept here is understanding who is credited with making the electric light bulb practical and usable in everyday life. Thomas Edison is the best answer because he and his team focused on creating a durable, longer-lasting incandescent bulb and, crucially, developing a workable electrical system to power it. They experimented extensively to improve the filament, ultimately using a carbon filament and creating a near–perfect vacuum inside the bulb, which greatly extended its life. Edison’s work didn’t just stop at the bulb; he helped bring together the necessary components—production, distribution, and commercialization—so electric lighting could be used in homes and businesses widely.

Other famous figures contributed to electricity or related technology, but they didn’t produce the practical incandescent bulb and the accompanying lighting system in the way Edison did. Nikola Tesla is known for advancing alternating current systems, Alexander Graham Bell for the telephone, and Michael Faraday for foundational discoveries in electromagnetism and electrochemistry.