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Anders testsida - Versionshistorik
2026-04-12T13:20:24Z
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Anders den 1 juni 2023 kl. 08.48
2023-06-01T08:48:30Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versionen från 1 juni 2023 kl. 08.48</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l25">Rad 25:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[category:Testsidor]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[category:Testsidor]]</div></td></tr>
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Anders
http://wiki.sikvall.se/index.php?title=Anders_testsida&diff=1429&oldid=prev
Anders den 1 juni 2023 kl. 08.48
2023-06-01T08:48:05Z
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Anders
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Anders den 3 juli 2013 kl. 08.50
2013-07-03T08:50:13Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versionen från 3 juli 2013 kl. 08.50</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><tr><td><math>Z^2=R^2+(X_L-X_C)^2</math></td><td>Impedanstriangeln för komplex last</td></tr></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><tr><td><math>Z^2=R^2+(X_L-X_C)^2</math></td><td>Impedanstriangeln för komplex last</td></tr></div></td></tr>
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Anders
http://wiki.sikvall.se/index.php?title=Anders_testsida&diff=406&oldid=prev
Anders den 20 februari 2013 kl. 16.25
2013-02-20T16:25:54Z
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<p><b>Ny sida</b></p><div><table border="0" spacing="0" cellpadding="10"><br />
<tr><td><math>U=R\cdot I</math></td><td>Ohms Lag</td><td>Spänningen = Resistansen x Strömmen</td></tr><br />
</table><br />
Seriekopplade resistorer summeras:<br><br />
*<big>r¹+r²+r³... = r-total</big><br><br />
Seriekopplade spänningskällor summeras:<br />
*<big>u¹+u²+u³... = u-total</big><br><br />
<br />
Vid beräkning av parallellkopplade resistorer adderas ledningsförmågan, ''konduktiviteten'', som är en invers till resistansen. Summan inverteras för att visa resistansen:<br><br />
*<big>1/r¹ + 1/r² + 1/r³... = 1/r-total</big><br><br />
<br />
Vid parallellkoppling av likvärdiga spänningskällor blir förändras inte spänningen<br />
<br />
Den totala strömmen i en krets är alltid lika stor som summan av alla ingående delströmmar<br />
<br />
Därefter definieras växelströmsmotståndet (reaktansen) X samt den komplexa impedansen Z som följer:<br />
<br />
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<tr><td><math>\omega = 2 \pi f</math></td><td>Definitionen av frekvenskomponenten i reaktansen<tr><td><math>X_{L}=\omega L</math></td><td>Induktiv Reaktans</td></tr><br />
<tr><td><math>X_{C}=\dfrac{1}{\omega C}</math></td><td>Kapacitiv reaktans</td></tr><br />
<tr><td><math>Z^{2}=X_{L}^{2}+X_{C}^{2}</math></td><td>Impedanstriangeln för rent reaktiv last</td></tr><br />
<tr><td><math>Z^2=R^2+(X_L-X_C)^2</math></td><td>Impedanstriangeln för komplex last</td></tr><br />
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Anders