Introduction to Electrostatics
ELECTROSTATICS 🎓 ELECTROSTATICS INTRODUCTION IN SHORT 🔌 1. Sources and Effects of Electromagnetic Fields Electric and magnetic fields are produced by electric charges . A stationary charge produces an electric field , while a moving charge (like in a wire) produces both electric and magnetic fields . These fields influence other charges nearby. Example: When you rub a balloon on your hair, electrons transfer, and the balloon sticks to a wall. The balloon creates an electric field that pulls on wall charges. 📍 2. Coordinate Systems To describe fields and charges in space, we use coordinate systems: Cartesian (x, y, z): For rectangular objects. Cylindrical (r, ϕ, z): For wires, cylinders. Spherical (r, θ, ϕ): For spheres, point charges. Example: For a long, thin wire with uniform charg...