The capacitance of a parallel plate capacitor depends on the separation between the plates and the area of overlap between them. Where is the permittivity of the dielectric, given by = 0 (where 0 is the permittivity of free space and is the relative permittivity of...
Capacitors can be charged and discharged through a resistor. Meters with a data logger can be used to plot a graph of charge, p.d. or current against time. When a capacitor charges: Electrons flow onto the plate connected to the negative terminal of the power supply...
Capacitors store small amounts of energy that can be accessed quickly. The energy stored by a capacitor is equal to the work done by the battery. This is given by the area under a p.d.-charge graph. Capacitors are found in electronic devices that don’t need to store...
Capacitors are electrical components that can store charge. They consist of two conducting plates separated by a dielectric. When connected to a power source, positive and negative charge build up on opposite plates by removal and addition of electrons. The insulating...