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ID number:446649
 
Author:
Evaluation:
Published: 03.10.2006.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

Pilnās strāvas likums un tā pielietošana magnētisko lauku aprēķināšanai. Magnetiskā lauka virpuļainais raksturs.
(Visur kur § jāliek L apakšā)
Pilnās strāvas likums.

Noteiksim magnētiskā lauka intensitātes vektora cirkulāciju CH laukā ap taisnu bezgalīgi garu strāvas vadu, ņemot ap vadu patvaļīgas formas noslēgtu kontūru L vadam perpendikulārā plaknē. Šajā gadījumā Hdl=Hdl cosα=Hds, kur ds=dl cosα – centra leņķim dβ atbilstošais riņķa līnijas loks ar rādiusu r. Tā kā H=I / (2¶r), tad Hds=Ids/(2¶r)=(I/(2¶)) dβ un CH =§ H- dl- = § ; (I/(2¶)) dβ=(I/(2¶))2¶=I…

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