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Ana Mido
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Which is higher, the breakdown voltage if the electric field is uniform or the breakdown voltage if the electric field is non-uniform ?
Breakdown voltage is the minimum voltage required to cause a dielectric material to lose its insulating properties and become conductive. It is important because it determines the maximum voltage that can be applied to a material before it breaks down and becomes damaged.
Field uniformity refers to the evenness of the electric field within a material. In general, a more uniform electric field will lead to a higher breakdown voltage because it reduces the concentration of high field regions that can cause breakdown.
There are several factors that can impact field uniformity, including the shape and thickness of the material, the type of voltage applied, and the presence of any defects or impurities in the material. Additionally, external factors such as temperature and humidity can also affect field uniformity.
Field non-uniformity can be measured using various techniques such as electric field mapping, charge sensing, and optical methods. These methods involve creating a visual representation of the electric field within a material and identifying any areas of non-uniformity.
Yes, field uniformity can be improved through various methods such as using materials with higher dielectric constants, optimizing the shape and thickness of the material, and reducing the presence of defects or impurities. Additionally, careful design and engineering of the material can also help improve field uniformity and increase breakdown voltage.