Plasma (physics) potential in the space between charged particles, independent 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 makes their electric fields 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 (formula_6), but on the scale of the Debye length
Negative and positive atheism Smith as synonyms of the less-well-known categories of implicit and explicit atheism, also relating to whether an individual holds a specific view that gods do not exist. ""Positive"" atheists explicitly assert that it is false that any deities exist. ""Negative"" atheists assert they do not believe any deities exist, but do not explicitly assert it is "true" that no deity exists. Those who do not believe any deities exist, but do not assert such non-belief, are included among "implicit atheists". Among "implicit" atheists are thus included the following: children and adults who have never heard of deities; people who have