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Samenvatting Uitwerkingen Hoofdstuk 10 Elektromagnetisme Systematische Natuurkunde VWO 5
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Volledige Uitwerkingen Hoofdstuk 10 Elektromagnetisme Systematische Natuurkunde VWO 5
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By: kikidbakker • 7 months ago
By: fleurliefting • 11 months ago
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Vwo 5 Hoofdstuk 10 Uitwerkingen10.1 Elektrische velden
Opgave 1
Een veldlijn staat loodrecht op het oppervlak en loopt van de positieve lading naar de
negatieve lading.
a Zie figuur 10.1.
b Zie figuur 10.1.
Figuur 10.1
Opgave 2
De elektrische kracht bereken je met de wet van Coulomb.
q Q
Fel f
r2
f = 8,987∙108 N m2 C−2
q = 1,0 C
Q = 1,0 C
r = 6357 km = 6357∙103 m (zie BINAS tabel 31 voetnoot 3)
1,0 1,0
Fel 8,987 109
(6357 103 )2
Fel = 2,22∙10−4 N
Afgerond: Fel = 2,2∙10−4 N.
Opgave 3
a Er werkt een resulterende kracht op de proeflading. De proeflading krijgt daardoor een
versnelling die in de richting van de raaklijn ligt. Die versnelling laat de lading ‘uit de
baan vliegen’.
b De versnelling bereken je met de formule voor de tweede wet van Newton.
De resulterende kracht is de elektrische kracht.
De elektrische kracht bereken je met de formule voor de elektrische veldkracht.
Fel = q ∙ E
Q = 1,6∙10−12 C
E = 1,0∙103 N C−1
Fel = 1,6∙10−12 × 1,0∙103 = 1,6∙10−9 N
Fres = m ∙ a
Fres = Fel = 1,6∙10−9 N
m = 3,2∙10−9 kg
1,6∙10−9 = 3,2∙10−9 ∙ a
a = 0,50 m s−2
Afgerond: a = 0,50 m s−2.
© ThiemeMeulenhoff bv Pagina 1 van 28
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