Two charges +2xx10^(-9)C and -8xx10^(-9)...

Two charges `+2xx10^(-9)`C and `-8xx10^(-9)`C are placed 0.3 M apart in air. Find the point or p[oints where the electric field and potential is zero.

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At a distance of 0.3m from 2nC on the other sidde of it. At points hose distance `r_(1) and r_(2)` are in the ratio 1:4

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