| ⇦ | 
| ⇨ |
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: - A body is thrown vertically up with a velocity u.It passes three points A,B and C
- A beam of light consisting of red, green and blue colours is incident on a right
- In depletion layer of unbiased P-N junction
- A bar magnet of pole strength 10 A-m is cut into two equal parts breadthwise.
- An automobile engine develops 100 kW when rotating at a speed of 1800 rev/min
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body is thrown vertically up with a velocity u.It passes three points A,B and C
- A beam of light consisting of red, green and blue colours is incident on a right
- In depletion layer of unbiased P-N junction
- A bar magnet of pole strength 10 A-m is cut into two equal parts breadthwise.
- An automobile engine develops 100 kW when rotating at a speed of 1800 rev/min
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