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Samenvatting H5 elektrische systemen (VWO)
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samenvatting van de methode systematische natuurkunde 4VWO hoofdstuk 5 elektrische systemen
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By: b7heijd • 5 year ago
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vwo 4Natuurkunde h5 elektrische systemen
Formuleoverzicht
Stroomsterkte 𝑸
I = 𝚫𝐓
i in A Q in C ΔT in sec.
Spanning 𝜟𝑬
U= 𝐐
U in v 𝛥𝐸 in j Q in C
Weerstand van een voorwerp 𝒍
R =ρ ∙ 𝐀
R in Ω ρ in Ωm l in m A in m2
Wet van ohm U=R∙I
U in v R in Ω i in A
I=G∙U
U in v G in S i in A
Spanningswet van Kirchhoff ∑U1 = 0
Stroomwet van Kirchhoff ∑I1 = 0
Parallelschakeling ITot = I1 + I2 + ……
UTot = U1 = U2 = ……
GTot = G1 + G2 + ……
Serieschakeling ITot = I1 = I2 = ……
UTot = U1 + U2 + ……
RTot = R1 + R2 + ……
Vermogen 𝜟𝑬
P = 𝜟𝒕
P in W 𝛥𝐸 in j ΔT in sec.
P=U∙I
P in W U in v i in A
rendement 𝑬𝒏𝒖𝒕𝒕𝒊𝒈
η= 𝑬𝒊𝒏
E in joule
𝑷𝒏𝒖𝒕𝒕𝒊𝒈
η = 𝑷𝒊𝒏
P in W
Serieschakeling- stroom blijft gelijk
Parallelschakeling -spanning blijft gelijk
Lading- het aantal coulomb per seconde door de stroomkring
Elementaire lading (e)– 1,602 ∙ 10-19 C
Ion – deeltje in vloeistof
Vrije elektronen –de negatieve elektronen in een ionrooster
Elektrische stroom – het verplaatsen van geladen deeltjes
Stroomsterkte – Ampère, hoeveelheid lading per tijdseenheid de dwarsdoorsnede passeert
Richting van de stroom
Spanning – hoeveelheid energie die wordt meegegeven aan een lading van 1 coulomb
Elektrische energie- dit is de energie die voorwerpen hebben die elektrisch geladen zijn en waar dus elektrische
spanning op staat.
Spanningsbronnen – batterijen, dynamo’s, zonnecellen
Spanningsmeter- voltmeter
Stroommeter- ampèremeter
Multimeter- kan je zowel spanning als stroom mee meten
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