English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

i'm having trouble differentiating those two, what else with magnetic fields. thank you so much for your help! =)

2007-02-02 18:40:20 · 2 answers · asked by ^_^ 1 in Science & Mathematics Engineering

2 answers

In electrostatics, charge need not be 'static' in the sense of unchanging. Instead 'static' implies that the dynamic coupling between electric and magnetic fields can be ignored. In electrostatics e-fields, voltage, and charges are studied while magnetic fields generated by the motion of these charges or fields that may be present for other reasons are ignored. Because of the electric field's relationship to and interaction with magnetism, electrostatics is a subfield of electromagnetism.


In physics, the space surrounding an electric charge has a property called an electric field. This electric field exerts a force on other charged objects. The concept of electric field was introduced by Michael Faraday.

The electric field is a vector with SI units of newtons per coulomb (N C-1) or, equivalently, volts per meter (V m-1). The direction of the field at a point is defined by the direction of the electric force exerted on a positive test charge placed at that point. The strength of the field is defined by the ratio of the electric force on a charge at a point to the magnitude of the charge placed at that point. Electric fields contain electrical energy with energy density proportional to the square of the field intensity. The electric field is to charge as acceleration is to mass and force density is to volume.

A moving charge has not just an electric field but also a magnetic field, and in general the electric and magnetic fields are not completely separate phenomena; what one observer perceives as an electric field, another observer in a different frame of reference perceives as a mixture of electric and magnetic fields. For this reason, one speaks of "electromagnetism" or "electromagnetic fields." In quantum mechanics, disturbances in the electromagnetic fields are called photons, and the energy of photons is quantized.

2007-02-02 19:40:29 · answer #1 · answered by ifureadthisur2close 2 · 0 0

electrostatic field is between two point charges and electric field is the field around the moving charges of a conductor.

2016-05-23 22:30:04 · answer #2 · answered by Anonymous · 0 0

fedest.com, questions and answers