The electric field strength of a uniform electric field is constant throughout the field. A perfectly uniform electric field has no variations in the entire field and is unattainable in the real world. However, two parallel plates can generate a field that resembles a perfectly uniform field with slight variations near the edge of the plates.
Electric fields are represented by drawing field lines that represent the direction of the field, as well as the strength of the field. More field lines represents a higher field strength. In a non-uniform electric field, the field lines tend to be curved and are more concentrated near the charges. In a uniform electric field, since the field strength does not vary, the field lines are parallel to each other and equally spaced. Uniform fields are created by setting up a potential difference between two conducting plates placed at a certain distance from one another. The field is considered to be uniform at the center of the plates, but varies close to the edge of the plates. The strength of the field depends on the potential difference applied to the plates and the distance by which they are separated. A higher potential difference or voltage results in a stronger electric field. The greater the distance between the plates, the weaker the field becomes. The electric field is therefore calculated as a ratio of the voltage between the plates to the distance they are separated by.Learn More
A uniform electric field of magnitude is a field that maintains a constant charge throughout and does not change over time. In a uniform electric field, the positive and negative ends of the field are the same at all points. The magnitude of this field is the strength expressed as a vector quantity.Full Answer >
Calculating electric field intensity requires the knowledge about the current charge level of the object that is making the electric field and the distance between that charged object and the measuring tool. Electric field intensity (or strength) is a vector quantity, which means it has direction as well as magnitude. The magnitude of this intensity comes from the way it is measured.Full Answer >
Electric field lines are drawn around charges to represent the direction as well as the strength of the field around the charges. Equipotential lines are drawn perpendicular to each electric field line and connect the electric field lines at points where their field strengths or potential difference are equal.Full Answer >
The dielectric constant does not have units or dimensions because it expresses the ratio of the permittivity of a substance to that of free space or a vacuum. The dielectric constant is a property of electrical insulators, and the symbol for the dielectric constant is the Greek letter kappa. Another name for the dielectric constant is "relative permittivity."Full Answer >