BJT or Bipolar junction transistor consist of three terminals. They are base, emitter and collector. It is used for amplification of weak signals and switching operations. It has two types of physical structures namely PNP and NPN. IN PNP, N type semiconductor is sand-witched between two P type semiconductors. In NPN, P type semiconductor is …
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PN junction Diode is formed by joining P type semi conductor and n type semiconductors. Due to diffusion of electrons and holes from P region and N region a depletion layer is formed in between P type and N type semiconductors. This region consist of positive and negative ions. Where positive ions aligned on the …
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This post contains all the theoretical explanations of conductor, semiconductor and insulator, followed by a Mock Test with Multiple Choice Questions . Difference between Conductor, Semiconductor and insulator parameter Conductor Semiconductor Insulator Resistance Low medium High Conductance High medium Low Temperature +ve temp coeff. -ve temp coeff. -ve temp coeff. Current High medium Low Free …
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What is an optical fiber? what is an optical fiber ? Typically, fiber optics are long, thin strands of glass (SiO2) about the diameter of human hair; some can be made out of plastic. Long distance telecommunication systems always use glass because of its lower optical absorption during transmission to maintain the signal strength. When …
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Which is better mongodb or mongoose Every MEAN stack developers may ask this question during the start of their carrier. Before providing a solution to the question ” Which is better mongodb or mongoose ” you should know about the difference between mongodb and mongoose. What is a MongoDB ? MongoDB is a NoSQL database …
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