Three charges +3q, +q, and Q are placed on a straight line with equal separation. To make the net force on q to be zero, the value of Q will be?
Correct answer: A. 3q
- A. 3q
- B. 2q
- C. 4q
- D. 5q
Explanation
Option A is correct as to balance out the force on q on either side Q must be equal to "3q".
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Electrostatics describes forces between charges through Coulomb's law, electric fields and field intensity, then uses electric potential to measure energy per unit charge. Capacitors store charge and electrical energy, with capacitance depending on geometry and dielectric material, not simply on the amount of charge present.
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