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All about resistors September 15, 2015 Electronics online Shopping No Comments Fundamentally there are two types of electricity-oriented devices- insulators and conductors. The resistance to flow of electricity is much high in insulators and vice versa in conductors. That’s when Resistors come into the picture. An electric component that is responsible for regulation of the flow of current is a resistor. Another function that resistors serve is of providing voltage to an active device such as a transistor. One can come across many types of resistors but the general purpose of the resistor is one! Resistors are the widely used basic electronic components.

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Archives September 2015 Let’s have a look at resistors, types and functioning! This PDF was generated via the PDFmyURL web conversion service!

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First type of resistors and the most common one are Fixed value resistors: As the name suggests, this type of resistor’s value cannot be changed since it comes with a set of fixed value of resistance.

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Before moving on to the other types of resistors, examining the visible characteristics of a resistor becomes

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a must. Resistors come in varied body colours,varied colour bands and various no. of bands speaking out the features the resistor offers. Body colour of a resistor says everything about the type of resistor. Generally the resistors with blue-ish bodies are metal film resistors. Colour Bands on resistors are the codes solving the purpose of identification of values or functions. The colours used are green, brown, violet, red and blue. No. of bands on a resistor which are 4 or 5 in numbers that tell us about the value and tolerance of resistors. From left to right, the first three bands are to matched among other resistors, 4th one is the multiplier and the last one, if present hints towards the tolerance.

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Resistor array: Many a times, one comes across situations when a number of resistors are needed in a row. At such instances, resistor arrays come to rescue without actually costing an extra penny! Usually an array of 4-6 resistors in available easily in the electronic market.

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Moving on , another type of resistors that are personally most interesting to me, are Light dependent resistors. In total darkness, the resistance in them shoots up to 1 mega ohms while at normal light, it comes down to 17 kilo ohms. Thermistors are resistors that change their values with the change in temperature.There acn be Positive or negative thermistor which increase or decrease resistance in accordance to the temperature. Calculations of a resistor, how resistors divide and current control are other aspects of using a resistor in your circuit/device. Basic electronic components and functions is also a very vital aspect of knowledge that has to be tick marked for building a sound project. Online electronic shopping has been considered by various geeks, tech-enthusiasts and technologists. This PDF was generated via the PDFmyURL web conversion service!

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