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Electronic and the science of electricity both deals with electricity and both electric current. The use of electricity has a direct relation with environment. Electricity deals with current mainly as a form of energy that can operate light, electric motors and other equipments. Electronics treats electric current chiefly as a means of carrying information. Current that carry information are called signals. The electronic devices are made of various electronic parts. The main function of the electronic parts is to change a current’s behaviors to produce or modify signals or in other word, interpreting the signals. Development of electronics parts make our eclectic goods more energy saving. There are thousand of Electronic Parts are available in the electronic marketplaces. Earlier electronic circuits were connected by means of wire. The various connecting wires got jumbled up and it give rise a problem of inter-electrode capacitance that changes the circuit characteristics. Apart from this, it was very difficult to test and repair the particular electronic circuit. Thus, in order to cover come these difficulties printed electronic circuit are introduced to connect various electronic parts. The printed circuit boards are simply known as P.C.B. It is an insulated Bakelite sheet printed with a circuit of electronic circuit diagram. There are various electronic parts are available in the market and even online like transistor or Tr, variable capacitor or VC etc. These help to remove the problem if inefficient energy uses. PBC and electronics parts are used in manufacturing various electronics equipments.

Complete circuit of transistorized set containing radio frequency, amplifier section and detector sections and audio frequency. We can find a lot of electronic component that perform the job of radio frequency amplifier section of a television receiver set. Intermediate frequency amplifier video and audio signal detector help is receiving video and audio signals. Electronic components are protected from environmental influences. Electronic equipment is consisting of various components like terminal and connector. A Socket is connector electronic component and there are thousands of different list of Socket are available depending of different part number. The Resistors are converts the electrical energy into heat energy and there are different kinds of Resistors are helpful for different electronic uses. Some Resistors are fixed valued and others are variable valued. The heating elements are also known as resistors and they help in transmitting using electric energy. There are some interesting resistor are available as Tharmistor. They can change their resistance power with the change of any change in the temperature of its environment. Various electronic companies make electronic parts with different parts numbers. Semiconductors are just other insulators if they are very pure and especially at very low temperature, but their conductivity can be greatly increased by adding a small amount of impurity. This process in know as doping for making a semiconductor. Then they can be use to make electronic devices diode, transistors or Integrated Circuits.Two type of semiconductor metrical are obtained depending on various types of impurities. They are like n-type and p-type semiconductors. The n-type semiconductors are doped with silicon (Si) and Phosphorus (P). The p-type semiconductors are doped with silicon (Si) and boron (P). In practical field there are thousand of semiconductors are developed for different uses by different manufacture and it is Hard to Find Semiconductors for right purpose.