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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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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The frequencies of X-rays,γ-rays and ultraviolet rays are respectively p,q and r
- Two point charges +2 coulomb and +10 coulomb repel each other with a force of 12 N.
- Two coaxial solenoids are made by winding thin insulated wire over a pipe
- A current of 5 A is flowing at 220 V in the primary coil of a transformer. If the voltage
- The primary and secondary coil of the transformer have 50 and 1500 turns respectively
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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