[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.jolli.cz\/magneticke-jevy-zpusobene-elektrickym-proudem\/#Article","mainEntityOfPage":"https:\/\/www.jolli.cz\/magneticke-jevy-zpusobene-elektrickym-proudem\/","headline":"Magnetick\u00e9 jevy zp\u016fsoben\u00e9 elektrick\u00fdm proudem","name":"Magnetick\u00e9 jevy zp\u016fsoben\u00e9 elektrick\u00fdm proudem","description":"Elektrick\u00fd proud vykazuje\u0161 ur\u010dit\u00fdch podm\u00ednek shodn\u00e9 \u00fa\u010dinky jako magnet. Elektrick\u00fd proud, kter\u00fd proch\u00e1z\u00ed kolem c\u00edvky, vytv\u00e1\u0159\u00ed magnetick\u00e9 pole, kter\u00e9 vznik\u00e1 v\u00a0okol\u00ed magnetu. Jestli\u017ee se do j\u00e1dra c\u00edvky zasune ty\u010d z\u00a0feromagnetick\u00e9ho materi\u00e1lu, \u00fa\u010dinky p\u016fsoben\u00ed magnetick\u00e9ho pole se je\u0161t\u011b zes\u00edl\u00ed. Takov\u00e9to za\u0159\u00edzen\u00ed naz\u00fdv\u00e1me elektromagnetem, jeho\u017e v\u00fdkon je prim\u00e1rn\u011b z\u00e1visl\u00fd na intenzit\u011b prot\u00e9kaj\u00edc\u00edho","datePublished":"2018-05-04","dateModified":"2023-04-29","author":{"@type":"Person","@id":"https:\/\/www.jolli.cz\/author\/#Person","name":"","url":"https:\/\/www.jolli.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/e1629206dbcdd39ad2b75cad97ca59670e29a5a134f2605d5414f1deeec462dc?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/e1629206dbcdd39ad2b75cad97ca59670e29a5a134f2605d5414f1deeec462dc?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"jolli.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.jolli.cz\/wp-content\/uploads\/img_a319682_w2515_t1530698769.jpg","url":"https:\/\/www.jolli.cz\/wp-content\/uploads\/img_a319682_w2515_t1530698769.jpg","height":0,"width":0},"url":"https:\/\/www.jolli.cz\/magneticke-jevy-zpusobene-elektrickym-proudem\/","wordCount":381,"articleBody":"Elektrick\u00fd proud vykazuje\u0161 ur\u010dit\u00fdch podm\u00ednek shodn\u00e9 \u00fa\u010dinky jako magnet. Elektrick\u00fd proud, kter\u00fd proch\u00e1z\u00ed kolem c\u00edvky, vytv\u00e1\u0159\u00ed magnetick\u00e9 pole, kter\u00e9 vznik\u00e1 v\u00a0okol\u00ed magnetu. Jestli\u017ee se do j\u00e1dra c\u00edvky zasune ty\u010d z\u00a0feromagnetick\u00e9ho materi\u00e1lu, \u00fa\u010dinky p\u016fsoben\u00ed magnetick\u00e9ho pole se je\u0161t\u011b zes\u00edl\u00ed. Takov\u00e9to za\u0159\u00edzen\u00ed naz\u00fdv\u00e1me elektromagnetem, jeho\u017e v\u00fdkon je prim\u00e1rn\u011b z\u00e1visl\u00fd na intenzit\u011b prot\u00e9kaj\u00edc\u00edho proudu, na kvalit\u011b ty\u010de v\u00a0j\u00e1dru a na po\u010dtu z\u00e1vit\u016f c\u00edvky.Praktick\u00e9 vyu\u017eit\u00ed elektromagnetu zn\u00e1me v\u0161ichni, jsou to nap\u0159\u00edklad magnetick\u00e9 drap\u00e1ky sv\u011bra\u010d\u016f ocelov\u00e9ho \u0161rotu a mechanismy up\u00edn\u00e1n\u00ed ocelov\u00fdch obrobk\u016f ve stroj\u00edrenstv\u00ed. Elektromagnetick\u00e9 pole se v\u0161ak vyu\u017e\u00edv\u00e1 i pro automatick\u00e9 sp\u00edna\u010de a rel\u00e9 a prakticky je vyu\u017e\u00edv\u00e1me v\u00a0mnoha elektrick\u00fdch spot\u0159ebi\u010d\u00edch v\u00a0na\u0161ich dom\u00e1cnostech.\tPrincip elektromagnetick\u00e9 indukceJestli\u017ee se v\u00a0c\u00edvce pohybuje magnet, nebo pokud se c\u00edvka na magnet nasouv\u00e1, doch\u00e1z\u00ed k\u00a0tzv. jevu magnetick\u00e9 indukce. Vznik\u00e1 indukovan\u00fd elektrick\u00fd proud, \u010deho\u017e se vyu\u017e\u00edv\u00e1 p\u0159i v\u00fdrob\u011b elektrick\u00e9 energie. Pohybliv\u00e1 c\u00edvka nebo magnet je tedy z\u00e1kladem gener\u00e1tor\u016f elekt\u0159iny, kde se pohyb c\u00edvky (mechanick\u00e1 energie) p\u0159em\u011b\u0148uje na energii elektrickou.Gener\u00e1tory elektrick\u00e9ho proudu zn\u00e1me v\u00a0z\u00e1sad\u011b pouze dva z\u00e1kladn\u00ed \u2013 jestli\u017ee generuj\u00ed st\u0159\u00eddav\u00fd proud, jedn\u00e1 se o tzv. altern\u00e1tory, jejich\u017e principu vyu\u017e\u00edv\u00e1 automobilov\u00fd pr\u016fmysl, a gener\u00e1tory stejnosm\u011brn\u00e9ho proudu jsou dynama a ta se je\u0161t\u011b ke konci dvac\u00e1t\u00e9ho stolet\u00ed b\u011b\u017en\u011b montovala na j\u00edzdn\u00ed kola jako zdroj v\u00fdroby elekt\u0159iny pro p\u0159edn\u00ed i zadn\u00ed sv\u011btla.Stejnosm\u011brn\u00fd proud znamen\u00e1, \u017ee se elektrony pohybuj\u00ed pouze jedn\u00edm sm\u011brem, zat\u00edmco u st\u0159\u00eddav\u00e9ho proudu se tok elektron\u016f neust\u00e1le m\u011bn\u00ed (st\u0159\u00eddav\u011b vp\u0159ed a vzad). St\u0159\u00eddav\u00fd proud je v\u00a0dom\u00e1cnostech a v\u00a0pr\u016fmyslu vyu\u017e\u00edv\u00e1 nej\u010dast\u011bji, doma se s\u00a0n\u00edm setk\u00e1v\u00e1me jednof\u00e1zov\u00e9ho nap\u011bt\u00ed 230 V (z\u00e1suvky b\u011b\u017en\u00fdch spot\u0159ebi\u010d\u016f), anebo u t\u0159\u00edf\u00e1zov\u00e9ho proudu o nap\u011bt\u00ed 380 V (n\u011bkter\u00e9 elektromotory).                                                                                                                                                                                                                                                                                                                                                                                        4.4\/5 - (8 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Magnetick\u00e9 jevy zp\u016fsoben\u00e9 elektrick\u00fdm proudem","item":"https:\/\/www.jolli.cz\/magneticke-jevy-zpusobene-elektrickym-proudem\/#breadcrumbitem"}]}]