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Coulomb S Law Questions

Practice 7 Coulomb S Law questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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Hard
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About Coulomb's Law โ€” practice questions, PYQs & concepts

Coulomb's Law is a frequently-tested topic on Physics. ExamTest.live currently lists 7 Coulomb's Law questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year โ€” every answer key is free, no sign-up required.

Coulomb's Law weight in competitive exams

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All Coulomb S Law Questions(1โ€“7 of 7)

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Q1mediummcqPhysicsAIEEE 20042026
0% accuracy
Two spherical conductors and having equal radii and carrying equal charges repel each other with a force when kept apart at some distance. A third spherical conductor having same radius as that of but uncharged is brought in contact with , then brought in contact with and finally removed away from both. The new force of repulsion between and is:
Q2hardmcqPhysicsNEET (UG) 20172026
0% accuracy
Suppose the charge of a proton and an electron differ slightly. One is , the other is . If the net electrostatic force and gravitational force between two hydrogen atoms at distance is zero, then is of the order of: (Mass of hydrogen )
Q3mediummcqPhysicsAIEEE 20092026
A charge is placed at each of the opposite corners of a square. A charge is placed at each of the other two corners. If the net electrical force on is zero, then the equals:
Q4hardmcqPhysicsPhysics
0% accuracy
Two identical charged conducting spheres A and B have their centres separated by a certain distance. Charge on each sphere is and the force of repulsion between them is . A third identical uncharged conducting sphere is brought in contact with sphere A first and then with B and finally removed from both. New force of repulsion between spheres A and B (Radii of A and B are negligible compared to the distance of separation so that for calculating force between them they can be considered as point charges) is best given as:
Q5easymcqPhysicsPhysics
Two positive ions, each carrying a charge , are separated by a distance . If is the force of repulsion between the ions, the number of electrons missing from each ion will be ( being the charge on an electron):
Q6hardmcqPhysicsPhysics
Two pith balls carrying equal charges are suspended from a common point by strings of equal length. The equilibrium separation between them is . Now the strings are rigidly clamped at half the height (). The equilibrium separation between the balls now becomes:
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Q7hardmcqPhysicsPhysics
Two identical charged spheres suspended from a common point by two massless strings of lengths , are initially at a distance apart because of their mutual repulsion. The charges begin to leak from both the spheres at a constant rate. As a result, the spheres approach each other with a velocity . Then varies as a function of the distance between the spheres, as:

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