General Science question from JKAS Prelims, 2021 by JKPSC
By what factor is the electromagnetic force stronger than the gravitational force?
Last updated Jun 24, 2026
Correct Answer:
Option D —
10³⁶
In physics, the electromagnetic force is vastly more powerful than gravity. To visualize this difference, scientists often compare how these two forces act on two protons placed near each other.
Gravity is the weakest of the four fundamental forces. While it is strong enough to keep planets in orbit, its effect on individual subatomic particles is almost negligible.
The Electromagnetic Force is what holds atoms together and governs the interactions between charged particles. It is incredibly robust by comparison.
Why the difference is so large
If you were to calculate the strength of both forces between two protons, the electromagnetic repulsion would be approximately one undecillion times stronger than the gravitational attraction. In scientific notation, this is written as 1 followed by 36 zeros.
An easy way to think about this "force gap" in daily life is to realize that a small refrigerator magnet can lift a paperclip against the gravitational pull of the entire Earth. This is because the electromagnetic force of the small magnet easily overcomes the cumulative gravitational force of our whole planet.
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
