The work function of a thermionic emitter is `4.5 eV`. By what factor does the thermionic current incease if its temperature is raised from `1500 K to 2000 K`?

The work function of a thermionic emitter is 4.5 eV . By what factor does the thermionic current increase if its temperature is raised from 1500 K to 2000 K ?

The work function of a thermionic emitter is 4.5 eV . By what factor does the thermionic current increase if its temperature is raised from 1500 K to 2000 K ?

The value of temperature coefficient of a reaction is 2 .By how many factors would the rate of the reaction increase if the temperature is raised from 298K to 338K ?

The conductivity of a pure semiconductor is roughly proportional to T^3/2 e^(-Delta E//2kT)where (Delta)E is the band gap.The band gap for germanium is 0.74eV at 4K and 0.67eV at 300K.By what factor does the conductivity of pure germanium increase as the temperature is raised form 4K to 300K?

The conductivity of a pure semiconductor is roughly proportional to T^(3/2) e^(-Delta E//2kT) where (Delta)E is the band gap. The band gap for germanium is 0.74eV at 4K and 0.67eV at 300K.By what factor does the conductivity of pure germanium increase as the temperature is raised form 4K to 300K?

The conductivity of a pure semiconductor is roughly proportional to T^(3/2) e^(-Delta E//2kT) where (Delta)E is the band gap. The band gap for germanium is 0.74eV at 4K and 0.67eV at 300K.By what factor does the conductivity of pure germanium increase as the temperature is raised form 4K to 300K?

what is the activation energy for a reaction if its rate doubles when the temperature is raised from 200 K to 400 K ?

What is the energy of activation of a reaction is its rate doubles when the temperature is raised from 290 K to 300 K ?