The Ratio of electro force between two protons to that between two electrons is of the order of:
Correct answer: D. 1
- A. 1042
- B. 1039
- C. 1036
- D. 1
Explanation
d) 1This option suggests that the ratio of the electrostatic force between two protons to that between two electrons is 1. This is the correct option. As explained earlier, the magnitude of the electrostatic force between charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Since protons and electrons have equal and opposite charges, the magnitude of the force between two protons is the same as the force between two electrons, and their ratio is 1:1.
This question appeared on the ETEA MDCAT 2017 paper, which you can sit online with every answer explained.
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About Coulomb's Law
Coulomb's law gives the electrostatic force between two point charges in terms of their magnitudes, separation and the medium between them. Questions involve attraction and repulsion, the inverse square relationship, superposition of forces and vector direction, which must not be confused with the electric field produced by a charge.
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