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Electronics — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectronics1 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
If the temperature of filament is doubled, then the thermionic current will nearly be four times

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