Lesson: Using Coulomb's Law to Determine an Electrostatic Force
In this lesson, we will learn how to determine the force a charge exerts on charges around it using Coulomb's law.
Sample Question Videos
Worksheet: 6 Questions • 2 Videos
Two small balls, each of mass 5.0 g, are attached to silk threads 50 cm long, which are in turn tied to the same point on the ceiling, as shown. When the balls are given the same charge , the threads hang at to the vertical. What is the magnitude of ?
Two point particles have charges of 8.0 µC and 12 µC respectively. Each particle is held at rest by a force of magnitude 45 N, applied in the opposite direction to the electrical force exerted on it by the other particle. What is the magnitude of the displacement from one charge to the other?
In a salt crystal, the distance between adjacent sodium and chloride ions is m. What is the force of attraction between the two singly charged ions?