GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Detailed explanation-1: -The magnitude of the electric force F is directly proportional to the amount of one electric charge, q1, multiplied by the other, q2, and inversely proportional to the square of the distance r between their centres.
Detailed explanation-2: -The magnitude of the electrostatic force F between two point charges q1 and q2 is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them. Like charges repel each other, and opposite charges mutually attract.
Detailed explanation-3: -Answer and Explanation: According to Coulomb’s Law, the force between two charged objects is inversely proportional to the square of their distance. Therefore, if the distance is tripled, the force will weaken by a factor of 9.
Detailed explanation-4: -Coulomb’s law calculates the magnitude of the force F between two point charges, q1 and q2, separated by a distance r. F=k|q1q2|r2. k=8.988×109N⋅m2C2≈8.99×109N⋅m2C2. Although the formula for Coulomb’s law is simple, it was no mean task to prove it.