Two particle of equal mass $m$ and charge $q$ are placed at a distance of $16\, cm$. They do not experience any force. The value of $\frac{q}{m}$ is
Two particle of equal mass $m$ and charge $q$ are placed at a distance of $16\, cm$. They do not experience any force. The value of $\frac{q}{m}$ is
- A
Zero
- B
$\sqrt {\frac{{\pi {\varepsilon _0}}}{G}} $
- C
$\sqrt {\frac{G}{{4\pi {\varepsilon _0}}}} $
- D
$\sqrt {4\pi {\varepsilon _0}G} $
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