Which of the following is unit of permitivity of vaccum ?

1.	Which of the following is unit of permitivity of vaccum ?
Answer» `(C^(2))/((Nm)^(2))` `(C)/(Nm)` `(Nm^(2))/(C)` `(C^(2))/(Nm^(2))` Solution :Force between TWO charge particle, at DISTANCE r, `F=(q^(2))/(4PI epsi_(0)d^(2))` `:. epsi_(0)=(q^(2))/(4pi Fd^(2))` `:.` Units of `epsi_(0)=(q^(2))/(Fd^(2)) [ :. 4pi` UNITLESS] `=(C^(2))/(Nm^(2))`

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