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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
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The magnetic flux linked with a coil at any instant t is given by ?, find emf
- A tuned amplifier circuit is used to generate a carrier frequency of 2 MHz
- An LED is constructed from a p-n junction based on a certain semi-conducting
- Light of frequency 8×10¹⁵ Hz is incident on a substance of photoelectric work
- The current in the windings of a toroid is 2.0 A. There are 400 turns
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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