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Samenvatting Natuurkunde Newton H1 $3.20
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Samenvatting Natuurkunde Newton H1
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  • Course
  • Natuurkunde
  • Level
  • VWO / Gymnasium
  • Book
  • Newton 4 VWO

Samenvatting over natuurkunde-licentie van Newton hoofdstuk 1 Elektriciteit. In dit hoofdstuk worden energie & vermogen, spanning & stroomsterkte, weerstand & geleidbaarheid en schakelingen in huis behandeld.

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Document information

  • No
  • Hoofdstuk 1
  • December 22, 2021
  • 2
  • 2021/2022
  • Summary

Subjects

  • energie
  • vermogen
  • spanning
  • stroomsterkte
  • weerstand
  • geleidbaarheid
  • schakelingen
  • schakelingen in huis

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  • Secondary school
  • VWO / Gymnasium
  • Natuurkunde
  • 4
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Natuurkunde H1
Naar: (Flokstra, et al., 2018)
§2 Energie en vermogen

Elektrisch vermogen (W) = hoeveel elektrische energie het apparaat per seconde
omzet (in J/s)
Rendement = het percentage energie dat wordt omgezet in de
gewenste vorm

Energie en vermogen
E=P∗t

In deze formule is E de energie (in J), P het vermogen (in W of J/s) en t de tijd (in s).

Rendement
E nuttig Pnuttig
η= ∗100 % of = ∗100 %
E¿ P¿
In deze formule is  het rendement, E de energie (in J) en P het vermogen (in W).



§3 Spanning en stroomsterkte

Vrij elektron = elektron dat niet vast zit aan een atoom en vrij door
het metaal beweegt
Ionen = geladen atomen, positief of negatief
Spanning = de oorzaak van de beweging van de elektronen
Gesloten stroomkring = elektronen gaan dezelfde kant op, er lekt geen energie
Stroomsterkte (in A) = hoeveel lading per seconde door een apparaat gaat
1A = 1 c/s
Vermogen = evenredig met de stroomsterkte en evenredig met de
spanning

Lading
Q=I ∗t

In deze formule is Q de lading (in c), I de stroomsterkte (in A) en t de tijd (in s).

Energie
E=U∗Q
In deze formule is E de elektrische energie (in J), U de spanning (in V) en Q de lading (in c).

Vermogen
P=U∗I
In deze formule is P het vermogen (in W), U de spanning (in V) en I de stroomsterkte (in A).

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