Why are vacuum tubes also called valves? | Faculties

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Ranjeet

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📊 IT in Management

Q. Why are vacuum tubes also called valves?

(A) because they can amplify the weak signals and make them strong
(B) because they can stop or allow the flow of current
(C) both of above
(D) none of above

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✅ Correct Answer: (B) because they can stop or allow the flow of current

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