{"title":"截图坏","authors":"Christine P. Cheney, James E. Parks","doi":"10.1002/9781119580164.ch26","DOIUrl":null,"url":null,"abstract":"A circuit consisting of a resistor, an inductor, and a power supply (or Emf source) is called a RL circuit. An inductor is especially helpful in circuits where you do not want a rapidly changing current. Inductors are usually made up of coils of wire. A ferromagnetic material may be inserted in the coil to increase inductance. If you turn on current in a circuit, then the current through the coil goes from 0 to some value and hence the magnetic field due the current goes from 0 to some value along the axis of the coil. This changing magnetic field induces a back Emf in the coil, which opposes the change in current per time. We have","PeriodicalId":263591,"journal":{"name":"Introductory Electrical Engineering with Math Explained in Accessible Language","volume":"41 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"RL Circuits\",\"authors\":\"Christine P. Cheney, James E. Parks\",\"doi\":\"10.1002/9781119580164.ch26\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A circuit consisting of a resistor, an inductor, and a power supply (or Emf source) is called a RL circuit. An inductor is especially helpful in circuits where you do not want a rapidly changing current. Inductors are usually made up of coils of wire. A ferromagnetic material may be inserted in the coil to increase inductance. If you turn on current in a circuit, then the current through the coil goes from 0 to some value and hence the magnetic field due the current goes from 0 to some value along the axis of the coil. This changing magnetic field induces a back Emf in the coil, which opposes the change in current per time. We have\",\"PeriodicalId\":263591,\"journal\":{\"name\":\"Introductory Electrical Engineering with Math Explained in Accessible Language\",\"volume\":\"41 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Introductory Electrical Engineering with Math Explained in Accessible Language\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1002/9781119580164.ch26\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Introductory Electrical Engineering with Math Explained in Accessible Language","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/9781119580164.ch26","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A circuit consisting of a resistor, an inductor, and a power supply (or Emf source) is called a RL circuit. An inductor is especially helpful in circuits where you do not want a rapidly changing current. Inductors are usually made up of coils of wire. A ferromagnetic material may be inserted in the coil to increase inductance. If you turn on current in a circuit, then the current through the coil goes from 0 to some value and hence the magnetic field due the current goes from 0 to some value along the axis of the coil. This changing magnetic field induces a back Emf in the coil, which opposes the change in current per time. We have
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