{"id":249,"date":"2014-08-17T08:43:21","date_gmt":"2014-08-17T06:43:21","guid":{"rendered":"http:\/\/jvelektronika.cz\/?page_id=249"},"modified":"2015-02-14T17:05:02","modified_gmt":"2015-02-14T16:05:02","slug":"ohmuv-zakon","status":"publish","type":"page","link":"https:\/\/jvelektronika.cz\/?page_id=249","title":{"rendered":"Ohm\u016fv z\u00e1kon"},"content":{"rendered":"
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Ohm\u016fv z\u00e1kon<\/h1>\n<\/div>\n
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30.08.2013 21:58<\/ins><\/p>\n

Ohm\u016fv z\u00e1kon<\/h1>\n

 <\/p>\n

Ohm\u016fv z\u00e1kon<\/b> vyjad\u0159uje vztah mezi ELEKTRICK\u00ddM ODPOREM, NAP\u011aT\u00cdM a PROUDEM.<\/p>\n

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Z\u00e1kon \u0159\u00edk\u00e1, \u017ee elektrick\u00fd proud v elektricky vodiv\u00e9m p\u0159em\u011btu je p\u0159\u00edmo \u00fam\u011brn\u00fd elektrick\u00e9mu nap\u011bt\u00ed p\u0159ilo\u017een\u00e9mu na tento p\u0159edm\u011bt, konstantou \u00fam\u011brnosti je vodivost.<\/p>\n

Odpor v\u011bt\u0161iny l\u00e1tek je z\u00e1visl\u00fd na jejich teplot\u011b, kter\u00e1 se pr\u016fchodem proudu m\u016f\u017ee m\u011bnit. Rovn\u011b\u017e lze n\u00e1ro\u010dn\u00fdm technologick\u00fdm postupem vyrobit l\u00e1tky, jejich\u017e odpor m\u016f\u017ee m\u00edt za ur\u010dit\u00fdch podm\u00ednek v\u00fdrazn\u011b neline\u00e1rn\u00ed charakter – polovodi\u010de. P\u0159i veden\u00ed elektrick\u00e9ho proudu doch\u00e1z\u00ed i k jin\u00fdm elektrick\u00fdm jev\u016fm – b\u011b\u017en\u00e9 materi\u00e1ly maj\u00ed krom\u011b odporu tak\u00e9 elektrickou permitivitu, m\u016f\u017ee se projevovat vliv elektrick\u00e9 indukce.<\/p>\n

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Zde na obr\u00e1zku vid\u00edme z\u00e1kladn\u00ed z\u00e1kony pro elektrotechniku.<\/strong><\/em><\/p>\n

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\"z\u00e1kon<\/a><\/p>\n

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Nezapome\u0148me, \u017ee v\u017edy po\u010d\u00edt\u00e1me v z\u00e1kladn\u00edch jednotk\u00e1ch<\/p>\n

U= Nap\u011bt\u00ed se ud\u00e1va ve voltech..<\/p>\n

A= Proud a ud\u00e1v\u00e1 se v amp\u00e9rech.<\/p>\n

R= Odpor a z\u00e1kladn\u00ed jednotka je Ohm.<\/p>\n

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1. Z\u00c1KON<\/strong><\/span><\/p>\n

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Pomoc\u00ed tohoto z\u00e1kon spo\u010dteme hodnoutu rezistoru ( odpor ), poku\u010f zn\u00e1me nap\u011bt\u00ed,\u00a0\u00a0 a proud.<\/p>\n

 <\/p>\n

2. Z\u00c1KON<\/strong><\/span><\/p>\n

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POMOCO\u00cd TOHOTO Z\u00c1KONA SPO\u010cTEME PROUD, ZN\u00c1ME-LI NAP\u011aT\u00cd A HODNOTU REZISTORU.<\/p>\n

 <\/p>\n

3. Z\u00c1KON<\/strong><\/span><\/p>\n

 <\/p>\n

Pomoc\u00ed tohoto z\u00e1kona spo\u010dteme nap\u011bt\u00ed, poku\u010f zn\u00e1me odpor a proud.<\/p>\n

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4 Z\u00c1KON<\/span><\/strong><\/p>\n

 <\/p>\n

Pomoc\u00ed tohoto z\u00e1kona spo\u010dteme v\u00fdkon, zn\u00e1me-li nap\u011bt\u00ed a proud.<\/p>\n<\/div>\n<\/div>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Ohm\u016fv z\u00e1kon 30.08.2013 21:58 Ohm\u016fv z\u00e1kon   Ohm\u016fv z\u00e1kon vyjad\u0159uje vztah mezi ELEKTRICK\u00ddM ODPOREM, NAP\u011aT\u00cdM a PROUDEM.   Z\u00e1kon \u0159\u00edk\u00e1, \u017ee elektrick\u00fd proud v elektricky vodiv\u00e9m p\u0159em\u011btu je p\u0159\u00edmo \u00fam\u011brn\u00fd elektrick\u00e9mu nap\u011bt\u00ed p\u0159ilo\u017een\u00e9mu na tento p\u0159edm\u011bt, konstantou \u00fam\u011brnosti je vodivost. Odpor v\u011bt\u0161iny l\u00e1tek je z\u00e1visl\u00fd na jejich teplot\u011b, kter\u00e1 se […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":240,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=\/wp\/v2\/pages\/249"}],"collection":[{"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=249"}],"version-history":[{"count":2,"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=\/wp\/v2\/pages\/249\/revisions"}],"predecessor-version":[{"id":881,"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=\/wp\/v2\/pages\/249\/revisions\/881"}],"up":[{"embeddable":true,"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=\/wp\/v2\/pages\/240"}],"wp:attachment":[{"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}