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theneedtoknow
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If I have a picture of the field lines of a field, how do I tell if the field is a possible electrostatic field? What are some things to look for that would imply it either is or is not a possible electric field?
theneedtoknow said:So if I have a field that looks something like
I can tell it could be an e-field because, if I start at any point on a loop and make a trip all the way back to the starting point, i will pass through as many arrows head on as i will tail on, so it nets to 0?
How do you explain completely closed electric field loops in vacuum without a physical source, such as Faraday's Law:Studiot said:An electric field has one more thing not yet mentioned and not shown in your sketch.
At least one source and /or sink.
Wouldn't Curl E = constant qualify as a static electric field? So as long as dB/dt is a constant, the induced electric field is constant.Redbelly98 said:The OP did say it is a static field. So zero curl is required, or equivalently the integral given by studiot is zero.
In order for a field to be considered electrostatic, the electric charges within the field must be at rest and not experiencing any acceleration. This means that the field must be static and not changing over time.
An electrostatic field is characterized by having electric charges that are stationary and not moving. These charges create a force that is proportional to the distance between them, according to Coulomb's Law. The field lines of an electrostatic field are also always perpendicular to the surface of a conductor.
Yes, an electrostatic field can exist in a vacuum. In fact, a vacuum is an ideal medium for an electrostatic field because there are no other particles or materials to interfere with the field. This is why electrostatic experiments are often conducted in a vacuum.
The strength of an electrostatic field can be measured using a device called an electrometer. This device can measure the amount of charge present in a specific area and can also measure the potential difference between two points in the field. The unit of measurement for an electrostatic field is volts per meter (V/m).
Electrostatic fields have many practical applications in our daily lives. Some examples include photocopiers, laser printers, and air purifiers which use electrostatic forces to attract and remove dust particles. Electrostatic fields are also used in spray painting, air filters, and even in the production of certain foods and beverages.