Small drops of the same size are charges to V volt each. If n such drops coalesce

⇦

⇨

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:

1. When the energy of the incident radiation is increased by 20%,
2. The displacement of particle is given by x=aₒ+(a₁t/2)-(a₂t²/3) what is acceleration?
3. If the radioactive dacay constant of radium is 1.07 x 10⁻⁴ year⁻¹, then its half-life
4. The ferromagnetic substance is
5. Curie is the unit of

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