| ⇦ | 
| ⇨ |
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 magnetic field at a point on the axis of a long solenoid having 5 turns per cm
- A charge of 40 µC is given to a capacitor having capacitance C=10 µF
- The inductive reactance of an inductor of 1/π henry at 50 Hz frequency is
- A solid cylinder of mass 50kg and radius 0.5 m is, free to rotate about the horizontal axis
- The magnetic field at the centre of a circular coil carrying current I ampere is B.
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The magnetic field at a point on the axis of a long solenoid having 5 turns per cm
- A charge of 40 µC is given to a capacitor having capacitance C=10 µF
- The inductive reactance of an inductor of 1/π henry at 50 Hz frequency is
- A solid cylinder of mass 50kg and radius 0.5 m is, free to rotate about the horizontal axis
- The magnetic field at the centre of a circular coil carrying current I ampere is B.
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