Question: At a point P, a distance R0 from a positive charge Q0, the electric field has a magnitude E0 = 100 N/C and the electric

At a point P, a distance R0 from a positive charge Q0, the electric field has a magnitude E0 = 100 N/C and the electric potential is V0 = 10 V. The charge is now increased by a factor of three, becoming 3Q0.
(a) At what distance, RE, from the charge 3Q0 will the electric field have the same value, E = E0; and
(b) At what distance, RV, from the charge 3Q0 will the electric potential have the same value, V = V0?

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