Energy Stored by a Capacitor When charging a capacitor, the power supply 'pushes' electrons to one of the metal plates It therefore does work on the electrons and electrical energy becomes stored o...
Capacitance Capacitors are electrical devices used to store energy in electronic circuits, commonly for a backup release of energy if the power fails Capacitors do this by storing electric charge, ...
Using Field Lines & Equipotential Diagrams The direction of electric fields is represented by electric field lines Electric field lines are directed from positive to negative Therefore, the fie...
Electric Potential for a Radial Field Electric Potential Energy In order to move a positive charge closer to another positive charge, work must be done to overcome the force of repulsion between th...
Electric Field between Parallel Plates The magnitude of the electric field strength in a uniform field between two charged parallel plates is defined as: Where: E = electric field strength (...
Electric Field & Potential A positive test charge has electric potential energy due to its position in an electric field The amount of electric potential energy depends on: The magnitude of cha...
Electric Field due to a Point Charge The electric field strength describes how strong or weak an electric field is at that point A point charge produces a radial field A charge sphere also acts lik...
Electric Force between Two Charges All charged particles produce an electric field around them This field exerts a force on any other charged particle within range The electrostatic force be...
Electric Field Strength The electric field strength at a point is defined as: The force per unit charge acting on a positive test charge at that point The electric field strength can be calculated ...
