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There are two basic types of resistors I.e, fixed and variable. these have further parts As fixed resistor contain1 Carbon Composition Resistors 2 Wire Wound Resistors 3 Thin Film Resistors 4 Thick Film Resistor And variable resistors types are  1. Potentiometers  2. Rheostats 3. Trimmers
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Carbon Composition Resistor – Made of carbon dust or graphite paste, low wattage valuesFilm or Cermet Resistor – Made from conductive metal oxide paste, very low wattage valuesWire-wound Resistor – Metallic bodies for heatsink mounting, very high wattage ratingsSemiconductor Resistor – High frequency/precision surface mount thin film technology
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