The ratio: gravitational force/electrostatic force between two electrons is always:
Correct answer: B. Less than unity
- A. Greater than unity
- B. Less than unity
- C. Equal to unity
- D. Zero
Explanation
Option A : Gravitational force / electrostatic force is not greater than unity. Option: B Electrostatic forces are much stronger than gravitational forces. This is because gravity depends on mass, atoms have tiny masses so the gravitational force between them is close to zero. Whereas, the electrostatic force related to charges is bigger. The ratio of gravitational force to electrostatic force is always less than 1.
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About Law of Universal Gravitation
Every two masses attract each other with a force proportional to the product of their masses and inversely proportional to the square of their separation, expressed as F = Gm₁m₂/r². Questions also involve the gravitational constant, vector direction, superposition of gravitational forces, and the distinction between gravitational force and gravitational field strength.
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