Summary
Samenvatting fysica-schakeling van weerstanden
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een samenvatting van schakeling van weerstanden in de fysica
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FYSICAHS 8: SCHAKELING VAN WEERSTANDEN
1. Elektrische schakelingen
Voorbeelden:
Zekeringskast
o Start van verschillende elektrische kringen
o Apparaten, lichtpunten, stopcontacten, …
Vormen elektrische schakeling
Autobatterij
o Levert stroom aan lampen, radio, stekker, …
Serieschakeling: Parallelschakeling: Gemengde schakeling:
Weerstanden achter elkaar Weerstanden parallel met Weerstanden in serie en
geschakeld elkaar en parallel met de parallel geschakeld
spanningsbron aangesloten
Begrippen:
In een knooppunt komen minstens 3 geleiders voor
Een tak is een deel van de schakeling tss twee opeenvolgende knooppunten
2. Serieschakeling
Observaties:
Stroomsterkte Ι op elke plaats in de
kring gelijk: Ι = Ι 1 = Ι 2
Ub = U 1 + U 2
Wetten van serieschakeling:
Seriewet 1: in een serieschakeling is de
stroomsterkte Ι in elk punt hetzelfde:
Ι1 = Ι2 = Ι3 = … = Ι
Seriewet 2: in een serieschakeling wordt de
bronspanning Ub verdeeld over weerstanden:
Ub = U 1 + U 2 + U 3 + …
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