Download - CARGA ELÉTRICA E CAMPO ELÉTRICO
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CARGA ELÉTRICA E CAMPO ELÉTRICO
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LEI DE COULOMB
Força Elétrica
F = KQq/r2
K= 1/4πεo
K= 8,988 x 109 Nm2/C2
εo= 8,854 x 10-12 C2/Nm2 permissividade do meio
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Força resultante em q2 : calcula-se F13 e F23, fazendo a soma algébrica levando em conta a atração ou repulsão Fq3= - F13 + F23 F13= 112μN e F23=84μN Fq3
= -28 μN
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CAMPO ELÉTRICO
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21.4 Fo= qoE
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Uma carga puntiforme q= -8,0 nC está localizada na origem dos eixos. Determine o valor do campo elétrico para o ponto do campo x=1,2m e y=-1,6m
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CAMPO ELÉTRICO UNIFORME
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CAMPO ELÉTRICO DEVIDO À VÁRIAS CARGASE = E1 + E2 + .... + EN