Internal resistance of vacuum diode¶

The internal resistance is generally equal to the current derivative of the voltage. For a vacuum diode, it can be calculated if the diode parameter and the voltage between the anode and cathode are known.

internal_resistance¶: Internal electrical_resistance of the vacuum diode.

Symbol:: R
Latex:: \(R\)
Dimension:: impedance

diode_constant¶: diode_constant.

Symbol:: g
Latex:: \(g\)
Dimension:: current/voltage**(3/2)

voltage¶: voltage between cathode and anode.

Symbol:: V
Latex:: \(V\)
Dimension:: voltage

law¶

R = 2 / (3 * g * sqrt(V))

Latex:: \[R = \frac{2}{3 g \sqrt{V}}\]