{"id":521,"date":"2023-08-18T04:23:52","date_gmt":"2023-08-17T21:23:52","guid":{"rendered":"http:\/\/www.tneutron.net\/elektro\/?p=521"},"modified":"2023-08-15T13:49:55","modified_gmt":"2023-08-15T06:49:55","slug":"resistor-and-resistance","status":"publish","type":"post","link":"https:\/\/www.tneutron.net\/elektro\/resistor-and-resistance\/","title":{"rendered":"Resistor and Resistance"},"content":{"rendered":"

Almost all of the electrical conductors are made of metal or metal.<\/span> But there is no material that can be a pure conductor.<\/span> But some metals conduct electricity better than others.<\/span> Silver, copper, and aluminum is a good conductor.<\/span> Iron, steel, and coal can also conduct electricity, but the resistance is very high.<\/span> Charcoal (carbon) is often used in electrical circuits, but it is not a good conductor.<\/span><\/p>\n

Very poor conductor commonly referred to as a resistor or resistance or custody or inhibitors.<\/span> Resistors have no free electrons or very few free electrons in the atom.<\/span> So it is very difficult for the free electrons to move through the other atom deep.<\/span> Resistor or detention is the electrical material that has low electrical conductivity or have a high resistance.<\/span> Due to the high value of the resistor resitansinya often used as a barrier electric current.<\/span><\/p>\n

Electrical materials are often used as resitor is charcoal or carbon, and nichrom.Dalam practice for the purpose of controlling the electric current used practical resistors are designed in a variety of prices.<\/span> Practical unit of the resistor is Ohm.<\/span><\/p>\n

\"image\"<\/a>
\n Figure 3.5 Resistor<\/span><\/p>\n

Electrical resistance is measured in ohms.<\/span> Where ohms stating the amount of resistance in an electrical circuit.<\/span> Resistance of one ohm allow for emf of one volt which causes the flow of current through the circuit of one ampere.<\/span> The symbols used to express the unit ohm is \u03a9.<\/span> The value of the electrical resistance on a conductor depend on the following four aspects:<\/span>
\n \uf0b7 The materials used<\/span>
\n \uf0b7 The diameter or size of the conductor<\/span>
\n \uf0b7 The length of conductors<\/span>
\n \uf0b7 conductor temperature<\/span><\/p>\n

The value of the resistance of a conductor can be calculated using the equation:<\/span>
\n\"image\"<\/a><\/p>\n

Where :<\/span>
\n R: conductor resistance, measured in ohms<\/span>
\n \u03c1: resistivity of the material, in units ohm.mm 2<\/sup> \/ m<\/span>
\n l: length of the conductor, measured in meters (m)<\/span>
\n A: cross sectional area of the wire conductor, in mm 2<\/sup><\/span><\/p>\n

Effect of Temperature on the value of is resistant is<\/span>
\n – Raise the resistivity niali introduction of pure metals and alloys<\/span>
\n – Lower the resistivity value of non-metallic conductors such as electrolyte and carbon as well as insulating materials such as paper, rubber, glass and mica.<\/span>
\n For example, a temperature t0 resistor has a resistance R0.<\/span> When the temperature rose to t1 resistor, then the resistance value increased to Rt.<\/span> In this case there keanikan milai resistance of dR, where:<\/span><\/p>\n

\"image\"<\/a><\/p>\n

Where<\/span>
\n \u03b1 is a constant called the temperature coefficient<\/span>
\n dt is the amount of temperature increase (t1 – t0)<\/span>
\n So it can be written:<\/span><\/p>\n

\"image\"<\/a><\/p>\n

This temperature effect was also occurs in the value of the resistivity of the metal conductor materials (lead, sodium, copper and aluminum).<\/span> Suppose the value t0 resitivitasnya is \u03c10, then at t1 becomes \u03c11.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Almost all of the electrical conductors are made of metal or metal. But there is no material that can be a pure conductor. But some metals conduct electricity better than others. Silver, copper, and aluminum is a good conductor. Iron, steel, and coal can also conduct electricity, but the resistance is very high. Charcoal (carbon) …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2232],"tags":[685,692,690,689,693,691,687,694,688,686],"class_list":["post-521","post","type-post","status-publish","format-standard","hentry","category-english","tag-resistor-resistance","tag-resistor-resistance-bands","tag-resistor-resistance-change-with-temperature","tag-resistor-resistance-chart","tag-resistor-resistance-code","tag-resistor-resistance-difference","tag-resistor-resistance-formula","tag-resistor-resistance-tolerance","tag-resistor-resistance-value","tag-resistor-resistance-vs-temperature"],"yoast_head":"\nResistor and Resistance - TN Elektro<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tneutron.net\/elektro\/resistor-and-resistance\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Resistor and Resistance - TN Elektro\" \/>\n<meta name=\"twitter:description\" content=\"Almost all of the electrical conductors are made of metal or metal. 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