Q. Which one is correct relation for thermionic emission
A) $J = AT^{1/2}e^{- \phi/kT}$
B) $J = AT^{2}e^{- \phi/kT}$
C) $J = AT^{3/2}e^{- \phi/kT}$
D) $J = AT^{2}e^{- \phi/2kT}$
Explanation
The correct answer is Option B: $J = AT^{2}e^{- \phi/kT}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.