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Electronics — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectronics1 Mark
MCQ
In a diode valve the cathode temperature must be (f = work function)
  • A
    High and ∅ should be high
  • ✓
    High and ∅ should be low
  • C
    Low and ∅ should be high
  • D
    Low and ∅ should be high
✓

Answer

Correct option: B.
High and ∅ should be low
High and ∅ should be low

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