Question 20
What was the purpose of the vacuum-sealed glass bulb used in Edison's light bulb?
To produce electricity
To prevent the filament from burning out
To protect the filament from breaking
To make the bulb look attractive
Question 20: What was the purpose of the vacuum-sealed glass bulb use…
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Correct answer
To prevent the filament from burning out
Question 20 of 39 in the IIT Madras BS Design Thinking for Data-Driven App Development (Design Thinking) End Term paper sat on 30 Apr 2023, in the January 2023 term (IIT M DEGREE ET1 EXAM QPE2 S1 30 Apr 2023). It carries 1 mark.
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