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Oefenopgaves stroom, spanning en weerstanden inclusief uitleg en uitwerkingen $5.35   Add to cart

Exam (elaborations)

Oefenopgaves stroom, spanning en weerstanden inclusief uitleg en uitwerkingen

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Uitgebreide oefenopgaves op verschillende moeilijkheidsgraden met weerstanden, stroom en spanningen in serie, parallel en gecombineerde schakelingen. Inclusief uitleg, formules en uitwerkingen. De perfecte voorbereiding op je natuurkunde toets!

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  • June 26, 2022
  • 16
  • 2019/2020
  • Exam (elaborations)
  • Questions & answers
  • Secondary school
  • 4
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Havo en vwo 3 Extra opgaven serie- en parallel schakelingen

De volgende grootheden met symbool en eenheden met symbool moet je leren.

grootheid en symbool eenheid en symbool
spanning U Volt V
stroomsterkte I Ampère A
weerstand R (van het Engelse Ohm Ω
Resistance)
vermogen P (van het Engelse Power) Watt W
energie E Wattuur Wh
tijd t uur h (van het Engelse hour)



Ohm U=IR
2
vermogen elektrische stroom P=UI =I R
energie elektrische stroom E=Pt
stroomsterkte bij:

serieschakeling:
I tot =I 1=I 2 =.. .
parallelschakeling
I tot =I 1 +I 2 +.. .
spanning bij:

serieschakeling:
U tot =U 1 +U 2 +.. .
parallelschakeling
U tot =U 1=U 2=. . .
vervangingsweerstand bij:

serieschakeling
Rtot =R 1 +R2 +. . .
1 1 1
= + +. ..
parallelschakeling
R tot R1 R2




1

, Havo en vwo 3 Extra opgaven serie- en parallel schakelingen
Opgaven en uitwerkingen --------------------------------------------------------------------------------------

1. Je hebt twee weerstand R1 = 100 Ω en R2 = 100 Ω.
a. Bereken de totale weerstand als deze twee weerstanden in serie zijn geschakeld.
Serieschakeling dus:
Rtot = R1 + R2
Rtot = 100 + 100 = 200 Ω

b. Bereken de totale weerstand als deze twee weerstanden parallel zijn geschakeld.
Parallelschakeling dus:
1/Rtot = 1/R1 + 1/R2 →
1/Rtot = 1/100 + 1/100 = 0,01 + 0,01 →
1/Rtot = 0,02 →
Rtot = 1/0,02 = 50 Ω




2

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