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Medical College Admission Test
Chemical and Physical Foundations of Biological Systems

Electrostatic Force Between Two Point Charges

Easy Physics Electrostatics And Electromagnetism

In a vacuum, two point charges are placed along the x-axis: Charge 1 (q1 = +2 µC) is located at x = 0 m, and Charge 2 (q2 = -3 µC) is located at x = 1 m. The electrostatic force between these two charges can be determined using Coulomb's law. According to Coulomb's law, the force (F) between two point charges is given by:

F = k * |q1 * q2| / r2

where k is Coulomb's constant (k ≈ 8.99 x 109 N·m2/C2), and r is the distance between the charges. If the distance between q1 and q2 is 1 meter, what is the magnitude of the electrostatic force acting between the two charges?

Hint

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