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After how many experiments did Edison succeed in inventing electric light ?

+3 votes

asked Jan 26, 2019 in Class 10 by kratos

After how many experiments did Edison succeed in inventing electric light ?

the inventor who kept his promise
class-10

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1 Answer

+6 votes

answered May 15, 2020 by kratos

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Edison succeeded in inventing the electric light after about twelve hundred experiments.

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