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Let N1 be the number of electric field l...

Let `N_1` be the number of electric field lines going out of an imaginary cube of side a that encloses an isolated point charge 2q and `N_2` be the corresponding number for an imaginary sphere of radius a that encloses an isolated point charge 3q. Then `(N_1//N_2)` is:

A

`1/pi`

B

`2/3`

C

`9/4`

D

`pi`

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