Two particle of equal mass m and charge q are placed at a distance of 16 cm. They do not experience any force. The value of qm is

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πε0G

G4πε0

4πε0G

answer is D.

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Detailed Solution

They will not experience any force if FG→=Fe→⇒Gm216×10−22=14πε0⋅q216×10−22⇒qm=4πε0G

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