| ⇦ | 
| ⇨ |
Two positive ions, each carrying a charge q, are separated by a distance d. If F is the force of repulsion between the ions, the number of electrons missing from each ion will be ( e being the charge of an electron)
Options
(a) 4π?￢ﾂﾀFd² / e²
(b) √(4π?￢ﾂﾀFe² / d²)
(c) √(4π?￢ﾂﾀFd² / e²)
(d) 4π?￢ﾂﾀFd² / q²
Correct Answer:
√(4π?￢ﾂﾀFd² / e²)
Explanation:
Let ne be the no. of electrons missing.
F = 1 / 4π?￢ﾂﾀ . q² / d²
q = √(4π?￢ﾂﾀd²F) = ne
n = √(4π?￢ﾂﾀFd² / e²)
Related Questions: - A spherical liquid drop of radius R is divided into 8 equal droplets. If the surface
- The drift speed of electrons in copper wire of diameter and length l is v.
- If the image formed by a convex mirror of focal length 30 cm is a quarter of the size
- A gramophone record is revolving with an angular velocity ?. A coin is placed at
- Which of the following rods of same material undergoes maximum elongation
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A spherical liquid drop of radius R is divided into 8 equal droplets. If the surface
- The drift speed of electrons in copper wire of diameter and length l is v.
- If the image formed by a convex mirror of focal length 30 cm is a quarter of the size
- A gramophone record is revolving with an angular velocity ?. A coin is placed at
- Which of the following rods of same material undergoes maximum elongation
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