What is meant by quasi neutral?

Quasi-neutrality (quasi, from the Latin, “as if”, “resembling”) describes the apparent charge neutrality of a plasma overall, while at smaller scales, the positive and negative charges making up the plasma, may give rise to charged regions and electric fields.

What is quasi neutral region in pn junction?

In a P-N junction, 2 regions having no electric field are on the ends of the device and are termed quasi-neutral regions. The depletion region has an electric field and is located where the junction is.

Why is plasma quasi neutral?

A plasma is a mixture of positively and negatively charged particles, ions and electrons, in which the negatively charged electrons are almost completely neutralized by the positively charged ions. We call such a mixture quasi-neutral, i.e., almost neutral.

What is neutral region?

[′nü·trəl ‚rē·jən] (astronomy) A region on the sun’s surface where the longitudinal magnetic field nearly vanishes; generally found between regions of opposite polarity.

Which is the specific particular solution for quasi neutral regions?

Based on the region’s boundary conditions, the specific particular solution is given. In Regions I and III on the previous page, the depletion approximation states that there is no electric field. Therefore, Poisson’s Equation becomes zero, and the drift term in the transport equation ( q μ nnE or q μ p pE ) also becomes zero.

Which is the best definition of a quasi-state?

A proto-state, also known as a quasi-state, is a political entity that does not represent a fully institutionalized or autonomous sovereign state. The precise definition of “proto-state” in political literature fluctuates depending on the context in which it is used. For instance, it has been used by some modern scholars…

What is meant by quasi neutrality in a semiconductor?

For nanowire FET, only source and drain are quasi neutral. From mathematical point of view, in quasi neutral region, Neumann boundary condition can be applied. Quasi neutrality refers to apparent charge neutrality and a quasi neutral region is apparently neutral region where electric field is zero.

What is the definition of quasi-neutrality in plasma?

Quasi-neutrality. Quasi-neutrality ( quasi, from the Latin, “as if”, “resembling”) describes the apparent charge neutrality of a plasma overall, while at smaller scales, the positive and negative charges making up the plasma, may give rise to charged regions and electric fields. Since electrons are very mobile,…