Question

3. o que ocorre com a força elétrica:

a)Quando dobra-se o valor das cargas?

b)Quando dobra-se o valor da distância entre ela?​

Answer 1

$F_e = \dfrac{k\cdot \vert Q\vert \cdot \vert q\vert} \\\\\\a) F_e = \dfrac{k\cdot 2Q \cdot 2q}{d^2}\\\\F_e = \dfrac{4\cdot k\cdot Q \cdot q}{d^2}\\\\\boxed{\mathsf{Logo,\ quaduplica-se\ a \ forc_{\!\!\!,}a\ eletrica}}\\\\\\b )F_e = \dfrac{k\cdot \vert Q\vert \cdot \vert q\vert}{d^2}\\\\F_e = \dfrac{k\cdot \vert Q\vert \cdot \vert q\vert}{(2d)^2}\\\\F_e = \dfrac{k\cdot \vert Q\vert \cdot \vert q\vert}{4d^2}\\\\\boxed{\mathsf{Logo,\ o\ a\ forc_{\!\!\!,}a\ eletrica\ e\ dividida\ por\ 4}}$

Abraços!