Two conducting spheres of radius R and 3R carry charges Q and `-2 Q`.
Channel: Doubtnut
Date: 2020-01-26

Two conducting spheres of radius R and 3R carry charges Q and `-2 Q`. Between these spheres a neutral conducting sphere of radius 2R is connected. The separation between the sphere is considerably large Charge flows through conducting wire due to potential difference. The final electric potential of sphere of radius 3R will be :