In a low$-$pressure cesium vapor diode, the actual electron emicer current will be equal

to the emicer saturaYon current only if there is no negaYve interelectrode space charge. Is there

a negaYve space charge in a diode with and emicer work funcYon of $3\mathrm{.}3$ eV$,$ an emicer emission

constant of $600,000$ A K$-2$

$,$ and an emicer temperature of $2350$ K$?$ What is the maximum power

output assuming that there is no negaYve surface charge, no back emission and operates in

vacuum?