Depletion Region Formation: In a P- region holes are majority charge carriers and electrons are minority charge carriers. Also P- region have accepter ions. In N- region, electrons are majority charge carriers and holes are minority charge carriers. Also N- region have donor ions. From the P – region holes spread into the N- region. […]
Biasing of PN Junction Diode: Depletion region is created when PN junction is formed. Due to this depletion region, movement of electrons and holes stops. So the current flow through the PN- Junction is zero. If we want to make the current to flow through the circuit we have to bias the PN junction diode.
Intrinsic Semiconductor A semiconductor is called intrinsic when it’s impurities content is less than one part impurity in 100 million parts. Most commonly used semiconductor are silicon and germanium. In figure there are four electron in the outermost orbit. Each of the four valance electron takes part in forming covalent bond with the four nearer
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Intrinsic semiconductor have small conductivity at room temperature. So we didn’t use intrinsic semiconductor. By adding some amount of impurity atom to a intrinsic semiconductor we can change the conductivity of intrinsic semiconductor. The process of adding impurity atom to intrinsic semiconductor is known as doping. In doping one atom of impurity is added per
A semiconductor which is in pure form is known as intrinsic semiconductor. A semiconductor is called intrinsic when it’s impurities content is less than one part impurity in 100 million parts. Most commonly used semiconductor are silicon and germanium. In figure there are four electron in the outermost orbit. Each of the four valance electron
An operational amplifier is an electronic component which is used in analog circuit to amplify signals. It have two input terminals one is inverting and another one is non inverting terminal, and one output terminal. Op-amp are used in various applications such as signal conditioning, filtering, amplification, integration, differentiation and many more. Block Diagram Input
Operational Amplifier: Symbol, Block Diagram, Equivalent Circuit Read More »
In this article firstly we will study the ideal characteristics of operational amplifier then we will discuss the characteristics of practical operational amplifier . Ideal Characteristics of Operational Amplifier Ideal operational amplifier has two input signal V1 and V2 which is applied to non inverting and inverting terminal. The input currents I1 and I2 are
Materials which are attracted by the magnet are called magnetic materials. For example iron, steel etc have the ability to become magnetized. 1) Paramagnetic Material Paramagnetic materials are not strongly attracted by the magnet. For eg. tin, platinum, aluminium etc are known as paramagnetic materials. Relative permeability of paramagnetic materials is small and positive. For
Magnetic Materials- Diamagnetic, Paramagnetic, Ferromagnetic Read More »
The closed path followed by magnetic flux is called a magnetic circuit. Magnetic Field The region around a magnet where it’s poles shows a force of attraction or repulsion is called magnetic field. Magnetic Force The force (either of attraction or repulsion) exerted on one magnet by another magnet is called the magnetic force. We
Capacitive Transducer Capacitive transducer converts the non electrical quantity i.e. displacement, force, pressure etc. into an electrical quantity i.e. voltage and current by means of change in capacitance. Principle of OperatIon The principle of Operation of the capacitive transducer is based on the equation of the capacitance of a parallel plate capacitor. In figure, L-
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