Hi Vaidotas151, http://img96.imageshack.us/img96/5725/red5e5etimes5e5e45e5e25.gifVaidotas151 said:Homework Statement
one capacitor is charged until its stored energy is 4.0 J, the charging battery then being removed. a second uncharged capacitor is then connected to it in parallel. if the charge distributes equally what is now the total energy stored in the electric fields? where the exess energy go? Answer must be 2 J
Homework Equations
The Attempt at a Solution
The total energy stored in the electric fields refers to the amount of energy that is stored in an electric field due to the presence of charged particles, such as electrons or protons. This energy is in the form of electric potential energy and is directly related to the strength of the electric field and the distance between the charged particles.
The total energy stored in electric fields can be calculated using the formula E = 1/2 * ε0 * ∫E^2 dV, where E is the electric field strength and ε0 is the permittivity of free space. This integral takes into account the electric field at every point in space and calculates the total energy stored within that field.
Excess energy in electric fields refers to the amount of energy that is not being utilized by the electric field. This excess energy can be caused by a higher than necessary voltage or electric field strength, and can lead to unwanted electrical discharge or damage to equipment.
To manage excess energy in electric fields, it is important to properly design and construct electrical systems. This includes using appropriate insulation materials, maintaining proper distances between charged particles, and implementing grounding techniques. In some cases, additional equipment such as capacitors or resistors may be used to control excess energy.
Understanding the concept of total energy stored in electric fields is crucial in the study and application of electricity and electronics. It allows for the proper design and functioning of electrical systems, as well as the identification and prevention of potential hazards and damage caused by excess energy in electric fields.