a temperatures in lightning can approach ~28,000 Kelvin (~27,700°C) and electron densities may exceed 1024/m³.Since plasmas are very good conductors, electric potentials play an important role. The potential as it exists on average in the space between charged particles, independent of the question of how it can be measured, is called the "plasma potential" or the "space potential". If an electrode is inserted into a plasma, its potential will generally lie considerably below the plasma potential due to what is termed a Debye sheath.  The good electrical conductivity of plasmas causes their electric fields to be very small.  This results in the important concept of "quasineutrality", which says the density of negative charges is approximately equal to the density of positive charges over large volumes of the plasma (ne=⟨Z⟩ni{\displaystyle n_{e}=\langle Z\rangle n_{i}}), but on the scale of the Debye length there can be charge imbalance. In the special case tha