Explore BrainMass

Explore BrainMass

    Thermionic emission of electrons

    Not what you're looking for? Search our solutions OR ask your own Custom question.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Find the value of the thermionic current in Amp/cm<sup>2</sup> for a platinum filament whose work function is 4.1 eV and temperature is 2000 K. The emission constant A is 120 A/(cm<sup>2</sup> K<sup>2</sup>).

    © BrainMass Inc. brainmass.com November 29, 2021, 11:46 pm ad1c9bdddf
    https://brainmass.com/physics/work/thermionic-emission-electrons-1426

    Solution Summary

    Given the value of emission constant, the solution shows how to calculate the thermionic current. The current through a platinum filament with a specific work function is found.

    $2.49

    ADVERTISEMENT