MCQ
In a diode valve the cathode temperature must be (f = work function)
- AHigh and ∅ should be high
- ✓High and ∅ should be low
- CLow and ∅ should be high
- DLow and ∅ should be high
✓
Answer
Correct option: B.
High and ∅ should be low
High and ∅ should be low
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