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A total charge of 5µC is distributed uniformly on the surface of the thin walled semispherical cup. If the electric field strength at the centre of the hemisphere is 9×10⁸NC⁻¹, then the radius of the cup is
{1/4πε₀=9×10⁹N-m²C⁻²}
Options
(a) 5mm
(b) 10mm
(c) 5cm
(d) 10cm
Correct Answer:
5mm
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- What are the unit of K = 1 / (4 π ?￢ﾂﾒ)
- If the band gap between valence band and conduction band in a material is 5.0 eV,
- A coil of inductive reactance 31 Ω has a resistance of 8 Ω. It is placed in series
- Three fourth of the active material decays in a radioactive sample in 3/4 sec
- A nucleus of uranium decays at rest into nuclei of thrrium and helium. Then
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Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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