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
Related MCQs
- Supercomputers
- Minicomputers
- Microcomputers
- Mainframe computers
اس سوال کو وضاحت کے ساتھ پڑھیں
کیا ضرورت ہے جب ایک ہی وقت میں ایک سے زیادہ شخص مرکزی کمپیوٹر استعمال کرتا ہے۔
- Terminal
- Digitizer
- Mouse
- Light pen
- None
اس سوال کو وضاحت کے ساتھ پڑھیں
ٹھ کے ڈسپلے کی معیاری پکسل ریزولوشن کتنی ہوتی ہے؟
- 1920 x 1080
- 3840 x 2160
- 7680 x 4320
- 1024 x 768
اس سوال کو وضاحت کے ساتھ پڑھیں
ڈی وی ڈی کس چیز کی مثال ہے؟
- Hard disk
- Optical Disk
- Output devices
- Solis-State Storage Devices
اس سوال کو وضاحت کے ساتھ پڑھیں
