Question: A positive point charge q1 creates an electric field of magnitude E1 at a spot located at a distance r1 from the charge. The charge

A positive point charge q1 creates an electric field of magnitude E1 at a spot located at a distance r1 from the charge. The charge is replaced by another positive point charge q2, which creates a field of magnitude E2 = E1 at a distance of r2 = 2r1. How is q2 related to q1?
(a) q2 = 2q1
(b) q2 = 1/2q1
(c) q2 = 4q1
(d) q2 = 1/4q1
(e) q2 = √2q1

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