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05-04-2018
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Who developed a machine that allowed sound waves to travel across a wire as an electrical current?

A) Alexander Graham Bell
B) Thomas Edison
C) Lewis Latimer
D) William Kelly

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05-04-2018

The man who have developed a machine that allowed sound waves to travel across a wire as an electrical current was known to be called Alexander Graham Bell

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05-04-2018

A ) Alexander graham bell

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