FionaZuppa
Senior Member
- Location
- AZ
- Occupation
- Part Time Electrician (semi retired, old) - EE retired.
Well, not sure i trust any of these links.
I select "increase linear" but the answer says "correct, exponential" ???
You realize the "light" mentioned here won't ordinarily be at full design output of the lamp, and most cases will need to be in very dark conditions to see the "light".I am thinking the tube will not light.
In my physics classes it was called dielectric strength.Where does the term "electrical strength" come from? We describe items in terms of resistance (R), or conductance (1/R).
In my physics classes it was called dielectric strength.
Relative permittivity is a measure of capacitance of different materials and it is an index with a value of 1.000 for a vacuum, which has the lowest permittivity possible. The absolute permittivity of free space (a vacuum) is about 8.5 X 10^-12 Farads per meter. I admit I had to look it up, but when I was in school I had it memorized.Which can be expressed in terms of a) ability to resist, or b) ability to conduct, with b=1/a
The nomenclature used sometimes gets scrambled with the words placed around it, and especially when the nomenclature changes to something like "electrical strength". It's just a measurement if dielectric property, nothing more.
Note: 1 mm = about 40/1000". 1 micro meter about 40/1,000,000".As with most materials, the AC dielectric strength in kV/mm decreases as the film thickness increases. For instance, 6 µm Mylar® film has a dielectric strength of over 600 kV/mm while 350µm Mylar® has a dielectric strength of about 80 kV/mm at 25°C.Apr 3, 2017