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प्रश्न
Which set consists entirely of types of vacuum tube devices?
विकल्प
Vacuum diode, triode, Cathode Ray Tube, and Liquid Crystal Display
Vacuum diode, triode, tetrode, and pentode
Vacuum diode, transistor, tetrode, and pentode
Triode, galena, tetrode, and pentode
MCQ
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उत्तर
The listed vacuum tube types are the vacuum diode, triode, tetrode, and pentode. They differ in their numbers and arrangements of electrodes.
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