M Dash Foundation: C Cube Learning

Tag: forward bias

  • Current and resistance in pn junction diodes, L-VII.

    Current and resistance in pn junction diodes, L-VII.

    Current flows in a pn junction diode under the application of external potential. The application of such a potential is known as “biasing”. The resulting Poisson’s equation becomes a nonlinear differential equation, i.e. charge concentrations now depend upon the potential. But the potential V (or Φ) now is a function of ‘x’ (location). Thus the…

  • PN junction diodes (L-IV)

    PN junction diodes (L-IV)

    Today we will discuss about what are PN junction diodes and various conditions they can be subjected to, viz. the forward and reverse bias. We will discuss what is a depletion layer and whats a built-in potential barrier. In our previous lecture we saw what are extrinsic semiconductors. We discussed that they are of two…