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Two concentric spheres kept in air have radii R and r. They have similar charge and equal surface charge density σ. The electrical potential at their common centre is (where,ε₀=permitivity of free space)
Options
(a) σ(R+r)/ε₀
(b) σ(R-r)/ε₀
(c) σ(R+r)/2ε₀
(d) σ(R+r)/4ε₀
Correct Answer:
σ(R+r)/ε₀
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Radii of curvature of a converging lens are in the rato 1:2. Its focal length
- A ball of mass 2 kg and another of mass 4 kg are dropped together from
- A bullet loses 1/20 of its velocity after penetrating a plank.How many planks
- The work done in which of the following processes is equal to the change in internal energy
- The heat dissipated in a resistance can be obtained by measuring of resistance,
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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