| ⇦ |
| ⇨ |
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: - In an inductor when current changes from 2 A to 18 A in 0.05 sec, the e.m.f. induced
- A radioactive nucleus emits a beta particle. The parent and daughter nuclei are
- Source S₁ is producing, 10¹⁵ photons per second of wavelength 5000Å
- A p-n photodiode is made of a material with a band gap of 2.0 eV
- The height of the dam, in an hydroelectric power station is 10 m. In order to generate
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In an inductor when current changes from 2 A to 18 A in 0.05 sec, the e.m.f. induced
- A radioactive nucleus emits a beta particle. The parent and daughter nuclei are
- Source S₁ is producing, 10¹⁵ photons per second of wavelength 5000Å
- A p-n photodiode is made of a material with a band gap of 2.0 eV
- The height of the dam, in an hydroelectric power station is 10 m. In order to generate
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