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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
- A straight conductor of length 0.4 m is moved with a speed of 7 ms⁻¹perpendicular
- The mean free path of electrons in a metal is 4 x 10⁻⁸ m. The electric field
- Two closed pipes produce 10 beats per second when emitting their fundamental nodes.
- The velocity v of waves produced in water depends on their wavelength λ, the density
- When the speed of electron beam used in Young’s double slit experiment is increased,
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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