Physics, asked by Kartik8127, 1 year ago

Who did invention of vacuum tube and in which year?

Answers

Answered by rockmitalipurushotam

1904, John Ambrose Fleming.
hope it's help you thanks

Answered by naveenpnvv

In 1901 powered vacuum cleaners using suction were invented independently by British engineer Hubert Cecil Booth and American inventor David T. Kenney. Booth also may have coined the word "vacuum cleaner

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