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14. Semicondutor electronics — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics14. Semicondutor electronics1 Mark
MCQ
For a given plate-voltage, the plate current in a triode is maximum when the potential of
  • A
    The grid is positive and plate is negative
  • ✓
    The grid is positive and plate is positive
  • C
    The grid is zero and plate is positive
  • D
    The grid is negative and plate is positive
✓

Answer

Correct option: B.
The grid is positive and plate is positive
b
(b)When grid is given positive potential more electrons will cross the grid to reach the positive plate $P. $ Hence current increases.

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