Electronics & Communication Engineering
Electronics &
Communication
Engineering
The resistor is a passive electrical component whose function is to introduce resistance to the flow of electric current in an electrical circuit to limit the current. The magnitude of the opposition to the flow of current is called the resistance of the resistor. A larger resistance value indicates a greater opposition to current flow. The resistance is measured in ohms (Ω), and its equation is as follows.
The Capacitor is a passive electrical component, whose function is to store electrical energy and deliver it to the circuit when needed. The capacity of a capacitor to store electrical charge is known as the capacitance of that capacitor. It is denoted by (C). The unit of capacitance is Farad (F) and can range from, micro Farad (µF) 1x 10
The inductors (also called as a coil or choke) is a passive two-terminal electrical component that stores magnetic energy when an electric current is passed through it. It’s an insulated wire wound into a coil around a core of some material (air, iron, powdered iron, or ferrite material) in a spiral form.
A light-emitting diode (LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light (corresponding to the energy of the photons) is determined by the energy required for electrons to cross the band gap of the semiconductor.
The transistor is a non-linear semiconductor three-terminal device. The transistor is considered to be one of the most important devices in the field of electronics. The transistor has transformed many aspects of man’s life. There are two main functions of transistors, to amplify input signals and to acts as solid-state switches. The transistor acts as a switch when operated either in saturation or cut-off region. Whereas it amplifies signals when used in the active region. It offers very high input resistance and very low output resistance.
An integrated circuit (IC) is an electronic circuit built on a semiconductor wafer, usually made of silicon. On this wafer, there are millions of miniaturized transistors, resistors, and capacitors, which are connected by metal traces. The ICs are powered by an external power supply for their operations. ICs perform specific functions such as data processing and signal processing. The entire physical size of the IC wafer is extremely small compared to that of discrete circuits hence it is called a microchip or simply chips. Because of their small size, ICs have low power consumption.
Motors convert electrical energy into mechanical energy. It comprises a stator, conduit box, eye bolt, rotor, enclosure, and bearings. Motors are more efficient in energy supply than their pneumatic and hydraulic counterparts. Therefore it is the most common part amongst all the electrical machinery.
A light-emitting diode (LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light (corresponding to the energy of the photons) is determined by the energy required for electrons to cross the band gap of the semiconductor.