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An electric field, $E_1$, is created around a sphere with a radius, $r$, and a charge, $q$.

Which of the following is the magnitude of the electric field, $E_2$, at a distance of $2r$ if the charge on the sphere is tripled?

A

$E_2$ = $\frac{3}{2}E_1$

B

$E_2$ = $\frac{3}{4}E_1$

C

$E_2$ = $6E_1$

D

$E_2$ = $24E_1$

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