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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
- The primary and secondary coil of the transformer have 50 and 1500 turns respectively
- A generator at a utility company produces 100 A of current at 4000 V. The voltage
- A small angled prism of refractive index 1.4 is combined with another small angled prism
- The radius of orbit of a planet is two times that of the earth. The time period
- Find the fundamental frequency of a closed pipe if the length of air column is 42m.
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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