Yeshi Jamtsho's Blog

Field lines is an alternative way to represent the information contained within a magnetic vector field. Magnetic field lines are imaginary lines.  The density of the lines indicates the magnitude of the field. Taking an instance, the magnetic field is stronger and crowded near the  poles of a magnet . As we move away from the poles, it is weak, and the lines become less dense.

Introduction: A rectifier diode is a semiconductor device widely used in electronic circuits to convert alternating current (Ac) into direct current (Dc). Its primary function is to allow current flow in one direction while blocking it in the opposite direction. This unidirectional flow of current enables the conversion of Ac voltage to a pulsating Dc voltage.  Formation or construction of rectifier diode: Rectifier diodes are typically constructed using a semiconductor material such as silicon or germanium, which possesses unique electrical properties. The diode consists of a p-n junction, where one side is doped with a material that has an excess of free electrons (n-type), and the other side is doped with a material that has a deficiency of free electrons (p-type). This configuration creates a potential barrier at the junction, known as the depletion region.  Working principles: When an Ac voltage is applied across the diode, during the positive half-cycle, the voltage...

  Definition:   A P-N junction is an interface or a boundary between two semiconductor material types, namely the p-type and the n-type, inside a semiconductor. In a semiconductor, the P-N junction is created by the method of doping. The p-side or the positive side of the semiconductor has an excess of holes, and the n-side or the negative side has an excess of electrons. The process of doping is explained in further detail in the next section. Formation of P-N Junction As we know, if we use different semiconductor materials to make a P-N junction, there will be a grain boundary that would inhibit the movement of electrons from one side to the other by scattering the electrons and holes and thus, we use the process of doping. We will understand the process of doping with the help of this example. Let us consider a thin p-type silicon semiconductor sheet. If we add a small amount of pentavalent impurity to this, a part of the p-type Si will get converted to n-type silicon. This...

                                                             what is semiconductors? is a conductor whose conductivity lies between insulator and conductor. Types of semiconductors intrinsic extrensic     Intrisic semiconductors is a conductors which are in pure form without any impurities. eg: silicon and germinium Notes numer of hole = number of electron majority charge carrier: Both hole and electron net charge is always zero Extrinsic semiconductuors is a semiconductors which are formed due to adding impurities to a conductors and it has two types and they are Ptype Ntype   Ptype is formed by adding trivalent impurities or impurity atom which has three valence electrons. eg; Boron, Gallium,Indiumand aluminium. Notes majority charge carrier is hole number of hole > number of electron Ntype is formed by adding...