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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
- Two identical flutes produce fundamental notes of frequency 300 Hz at 27° C
- What is the voltage gain in a common-emiiter amplifier, when input resistance is 4 Ω
- A source of sound and a detector are moving along the same line with same speed
- The rest mass of a body is m1. It moves with a velocity of 0.6c, then its relativistic
- If 10000 V is applied across an X-ray tube, what will be the ratio of de-Broglie
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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