== Navigation Links == * [[..start|Browse activities by Classroom Strategy]] * [[.:Start|Rationale and Tips for Compare and Contrast Activities]] ==== Compare & Contrast Activities ==== {{ activities:content:photos:vfdrawquadrupole.jpg?300|Compare and Contrast Activities}} * Electrostatic Potential Due to Two Point Charges * Electrostatic Potential Due to a Ring of Charge * Electric Field Due to a Ring of Charge * Magnetic Vector Potential Due to a Spinning Ring of Charge * Magnetic Field Due to a Spinning Ring of Charge * Ampere's Law * Diagonalizing Matrices * Using Initial Conditions to Specify Analytic Wave Solutions * Energy Density of Waves on a String * Operators and Functions