| ⇦ | 
| ⇨ |
Small drops of the same size are charges to V volt each. If n such drops coalesce to form a single large drop, its potential will be
Options
(a) Vn
(b) V/n
(c) Vn¹/³
(d) Vn²/³
Correct Answer:
Vn²/³
Explanation:
Potential at the surface of a solid charged sphere = (1 /4πε₀).(q / a)
(4/3) πr³ × n = (4/3) πr’³
Due to n changes, Vn = (1 /4πε₀).(nq / r’),
r’ = rn¹/³
Vn = (1 /4πε₀).(nq / n¹/³ r) = V n²/³
Related Questions: - The initial rate of increase of current, when a battery of emf 6 V is connected
- A wheel of mass 10 kg has a moment of inertia of 10 kgm² about its own axis
- A spherical liquid drop of radius R is divided into 8 equal droplets. If the surface
- Following figures show the arrangement of bar magnets in different configurations
- A speeding motorcyclist sees traffic jam ahead him. He slows down to 36 km per hour
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The initial rate of increase of current, when a battery of emf 6 V is connected
- A wheel of mass 10 kg has a moment of inertia of 10 kgm² about its own axis
- A spherical liquid drop of radius R is divided into 8 equal droplets. If the surface
- Following figures show the arrangement of bar magnets in different configurations
- A speeding motorcyclist sees traffic jam ahead him. He slows down to 36 km per hour
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply