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STD 12 - 14. Semicondutor electronics — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 14. Semicondutor electronics4 Marks
MCQ
Which one is correct relation for thermionic emission
  • A
    $J = A{T^{1/2}}{e^{ - \varphi /kT}}$
  • ✓
    $J = A{T^2}{e^{ - \varphi /kT}}$
  • C
    $J = A{T^{3/2}}{e^{ - \varphi /kT}}$
  • D
    $J = A{T^2}{e^{ - \varphi /2kT}}$
✓

Answer

Correct option: B.
$J = A{T^2}{e^{ - \varphi /kT}}$
b
(b)

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