Electric field - Wikipedia
An electric field (sometimes called E-field [1]) is the physical field that surrounds electrically charged particles. Charged particles exert attractive forces on each other when their charges are opposite, and repulse each other when their charges are the same.
5.5: Electric Field - Physics LibreTexts
Fortunately, it is possible to define a quantity, called the electric field, which is independent of the test charge. It only depends on the configuration of the source charges, and once found, allows us to calculate the force on any test charge.
18.3 Electric Field - Physics - OpenStax
If you know the electric field, then you can easily calculate the force (magnitude and direction) applied to any electric charge that you place in the field. An electric field is generated by electric charge and tells us the force per unit charge at all locations in space around a charge distribution.
Electric Field: Definition, Properties, Examples & Problems
2023年2月17日 · An electric field is an invisible force field caused by an electric charge. It is an alteration in the space (air or vacuum) around the charge. It results in an electric force that is felt by electric charges when placed close to one another.
Electric field | Definition, Units, & Facts | Britannica
2024年11月22日 · Electric field, an electric property associated with each point in space when charge is present in any form. The magnitude and direction of the electric field are expressed by the value of E, called electric field strength or electric field intensity or simply the electric field.
Charges and Fields - Electric Field | Electrostatics | Equipotential ...
Arrange positive and negative charges in space and view the resulting electric field and electrostatic potential. Plot equipotential lines and discover their relationship to the electric field. Create models of dipoles, capacitors, and more!
Electric Fields & Forces on Charges | CIE A Level Physics Revision ...
2022年5月22日 · An electric field is a region of space in which an electric charge “feels” a force; Electric field strength at a point is defined as: The electrostatic force per unit positive charge acting on a stationary point charge at that point . Electric …
Electric Field Explained | Basics, Effects & Applications
2024年5月27日 · An electric field is a fundamental concept in physics, representing the area around an electric charge that experiences a force due to that charge. This invisible field is a cornerstone in understanding electromagnetic phenomena and has numerous applications in various fields of science and technology.
2005年9月1日 · In physics, we say that the force exerted by one object onto another a distance away is conveyed through a field. The electric field is defined as the force acting on a positive test charge, per unit charge. Units are thus N/C for the electric field. The electric field is a vector field. It has a magnitude and a direction.
Electric field | Electric charge, electric force, and voltage | Physics ...
2008年5月13日 · We can think of the forces between charges as something that comes from a property of space. That property is called the electric field. Created by Sal Khan....more. …