Operational amplifier has two inputs, Inverting (-ve) and non inverting (+ve) inputs and one output. 741 is one of the traditional op-amp, which have 8 pins. two pins are inputs, one pin is output and a Vcc (+ve) and Vee (-ve), which are supply voltages (range 5 to 15 V). It also have two offset …
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Thyristor or Silicon Controlled Rectifier is well known as SCR. This device have four layers, three junctions and three terminals. Three terminals of SCR are gate, anode and cathode. Gate is located close to cathode. Like in PN junction diode, anode and cathode terminal makes thyristor or “silicon controlled rectifier” a RECTIFIER. Gate terminal controls …
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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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