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Which of the following identifies the main reason inventing the light bulb involved a long trial and error process? The light bulb parts needed to be reliable. The light bulb parts needed to be economical.
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Which of the following identifies the main reason inventing the light bulb involved a long trial and error process?

The light bulb parts needed to be reliable.

The light bulb parts needed to be economical.

The light bulb parts needed to withstand heat.

The light bulb parts needed to withstand pressure.

User Marco Staffoli
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2 Answers

5 votes

Answer:

The light bulb parts needed to withstand heat.

(i know)

User Alvin Lindstam
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6 votes

Answer:

The light bulb needed to withstand heat

User Slemgrim
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3.8k points
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