MCQ
Thermionic emission from a heated filament varies with its temperature $T$ as
- A$\mathrm{T}^{-1}$
- B$T$
- ✓$\mathrm{T}^2$
- D$\mathrm{T}^{3 / 2}$
✓
Answer
Correct option: C.
$\mathrm{T}^2$
$\mathrm{T}^2$
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