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Determina intensitatea campului electric produs de un proton la distanta r = 5,3 * [tex] 10^{-11} [/tex] m.

Răspuns :

[tex]E= \frac{k*q_{p} }{r^{2} } = \frac{9*10^{9}*1,6*10^{-19} }{(5,3*10^{-11})^{2} } = \frac{14,4*10^{-10} }{28,09*10^{-22} } =0,51*10^{12} N/C[/tex]