Questions tagged [dielectric]
A dielectric is an insulator that can be polarized by applying an electric field. A common example is the use of a dielectric within a capacitor between the metallic plates to increase the surface charge.
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How to detect non magnetic material?
I want to design a paintball counter. I have a metallic or plastic tube through which a paint ball passes.
How can I detect that the ball passed? What kind of sensors do I need?
I cannot see the ...
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How do internal capacitor stud finders work?
I don't understand how a non-magnetic object like wood can be detected using a stud finder.
For instance, stud finders find wood from the dielectric constant, but I don't understand the principle.
The ...
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How does a dielectric alter the electric field?
My textbook is trying to explain why adding in a dielectric between two conductors causes a change in the field inside. They provide the following image:
I don't understand how the second image is ...
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How does the tester screwdriver work?
How does the tester screwdriver work? If I put the tester screwdriver inside the "hot wire" of an electrical socket, it lits up if I press my finger against the metal cap on top of the screwdriver. ...
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Are there any consumer-grade waterproofing solutions? [duplicate]
Is there a common solution to protecting electronics from water by coating conductors in dielectric material?
I figured you could just cover everything in thin layer of hot glue, but there might be a ...
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cable losses per meter (voltage > 400 and frequencies [50 Hz ... 60 Hz])
If I compute
I * I * R
I obtain the loss of the conductor in Watt. Is this per meter similar to the dielectric loss (see IEC 60287-1-1)?
I am also wondering about the loss factor of sheath and ...
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I want to build a portable railgun and I'm a complete rookie [closed]
I'd like to enter the world of electronic hobbies by making a railgun, and so far I know that I understand the basics of the device and that I need high amounts of direct current.
However, I am ...
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Building a cheap and stable microwave network analyser or oscillator (2-5GHz)
I am interested in measuring the changing dielectric constant of a liquid as it undergoes a process. My background research of scientific articles shows that the 2-5GHz range provides the best ...
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What dielectric liquids can be used as coolants?
I've seen some interesting videos of people putting their computers in containers with sunflower oil, where they continue to work normal.
Are there any other dielectric liquids that can be used to ...
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