30 In the figure, the electric field lines arising from two charges Q₁ and Q₂ are shown. From this figure,

(A)both Q₁ and Q₂ have the same sign
(B)the electric field could be zero at P₂
(C)the electric field could be zero at P₁
(D)|Q₂|=|Q₁|

(E)None of these is true

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