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14. Semicondutor electronics — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics14. Semicondutor electronics1 Mark
MCQ
In a triode valve
  • A
    If the grid voltage is zero then plate current will be zero
  • B
    If the temperature of filament is doubled, then the thermionic current will also be doubled
  • ✓
    If the temperature of filament is doubled, then the thermionic current will nearly be four times
  • D
    At a definite grid voltage the plate current varies with plate voltage according to Ohm’s law
✓

Answer

Correct option: C.
If the temperature of filament is doubled, then the thermionic current will nearly be four times
c
(c)

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