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Electronics — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsElectronics1 Mark
Question

In a diode valve the cathode temperature must be (f = work function)

(a) High and ∅  should be high

(b) High and ∅ should be low

(c) Low and ∅ should be high

(d) Low and ∅ should be high
✓

Answer

(b) High and ∅ should be low

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