A vacuum tube is also known as electronic valve because?
ویکیوم ٹیوب کو الیکٹرانک والو کیوں کہا جاتا ہے؟
- It conducts only in one direction
- It is number of electrodes
- It carries electrons
- None of these
Explanation
- A vacuum tube is also known as an electronic valve because it can control the flow of electrons.
- It especially allowing current to flow primarily in one direction in diode-type vacuum tubes.
- The term “valve” comes from its ability to control or regulate electron flow.
- A diode vacuum tube has two electrodes and permits current mainly in one direction.
- Vacuum tubes were widely used in early computers, radios, televisions, and amplifiers.
Last verified on 10-08-2026
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