Calculate too:
Angles of circumference

Electric conduction



Thermionic emission. Richardson equation


j
A/m2
B
A/(m2·K2)
T
K
A
J
T
K
k
J/K
1.381E-23

1. Define values of all variables, besides sought quantity
2. Change units if necessary
3. Click "Calculate"




variables:

j - density of electron current emitted by hot cathode
B - Richardson constant
T - temperature of cathode
A - work function of cathode material
k - Boltzmann constant



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