energy stored and electric field in capacitor

The only objective of this presentation is to Determine the energy density and the electric field inside the capacitor with the given configuration.

1. Energy stored and electric-field energy in capacitor Prepared by: RG Luis Vincent P. Gonzaga

2. Objectives Determine the energy density and the electric field inside the capacitor with the given configuration.

3. capacitor When you set an old-fashioned spring mousetrap or pull back the string of an archer’s bow, you are storing mechanical energy as elastic potential energy. A capacitor is a device that stores electric potential energy and electric charge. To make a capacitor, just insulate two conductors from each other.

4. Capacitors in fact can be any two conducting objects insulated in the middle

5. The SI unit of capacitance is called one farad (1 F), in honor of the 19th-century English physicist Michael Faraday . one farad is equal to one coulomb per volt 1 F = 1 farad = 1 C>V = 1 coulomb>volt

6. Energy Density Energy Density is defined as the total amount of energy in a system per unit volume.  It is denoted by letter U. energy per unit volume stored in the space between the plates of a parallel-plate capacitor.

7. Example : Find  the energy density of a capacitor if its electric field,  E = 5 V/m.

8. Given; E = 5V/m We know that,   The energy density formula of capacitor is given by

9. The Capacitors Electric Field When a voltage is applied across the two plates of a capacitor, a concentrated field flux is created between them, allowing a significant difference of free electrons (a charge) to develop between the two plates:

10. Thank you..!

11. Quiz What do you call the distance between two plates of capacitor? Between those distance there is fields interacting, what do you call that fields? Battery uses chemical to store energy while capacitor uses .

12. answer Potential difference Electric field Electric field