Questions tagged [electrostatic]
97 questions
7
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1 answer
What is causing this weird effect with aluminum?
I grabbed an LED and then scraped an aluminum plate with a pin, and it turned on at some points, at first I thought it was electrified but it wasn't, then I tried with another aluminum plate and it also happened.
Later I tried the same thing with a…
Sartem Cacartem
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4
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5 answers
Electrostatic danger
At what is humidity the risk of electrostatic damage to electronics significant? Clearly 0% would be most dangerous and 100% would be less dangerous, but what are the risks in between?
TQQQ
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2
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Is it safe to use hot glue in electronics?
I know question seems too basic to ask but I couldn't find any specific information anywhere .
I want to use hot glue gun to stick components and cables into cardboard to prevent them move or break but someone said hot glue is electrostatic and…
Mordecai
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How it is determined whether an equal sign can be used within the boundaries?
Why equal signs weren't used for limits(r < a, a < r < b, r > b instead of r <= a, a <= r <= b, r >= b)?
Two concentric spherical surfaces of radius a and b = 2a are in vacuum and
they are evenly charged with charge quantities Qa = Q and Qb = 2Q.…
Pavle
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1
vote
2 answers
Static Electricity - and charges
When we comb our hair (with a plastic comb) and then bring the comb close to bits of paper, the bits get attracted to the comb. I understand this is because the comb is now electrically charged.
Why then, don't these same bits of paper get attracted…
Bhanu Nepal
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0
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1 answer
Verification of Electric Field from Infinite Line Charge
Problem:
I am currently tackling a problem involving the derivation of the electric field \$\textbf{E}\$ at location \$(0,y)\$ induced by an infinite homogeneous line charge \$\lambda\$ (refer to the provided image below). I have formulated the…
Marco Moldenhauer
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Imagining electric flux intuitively
I know that electric field doesn't really flow, so whenever I'm trying to imagine electric flux like an amount of water passing through a window intuitively, I can't relate these two things.
Can somebody out there give me a more precise intuitive…
Sayan
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When grounding conductors in electrostatic problems, is the reference point of electric potential defined at infinity or the ground?
I am confused about the meaning of 'grounding' in electrostatics. My textbook claims that any grounded conductor has zero electric potential, but it seems to me this claim can have two different meanings:
It is zero as the new reference point,…
Venuce
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0
votes
1 answer
Bar connecting leyden jars on wimshurst machine
So I finally finished building my wimshurst machine! Disks are around 14" and it works, but the sparks get about 1/2" :( so i was wondering what i could fix and for my metal thats connecting the outside of both leyden jars, im using a thin ribbon…
Reese Houseknecht
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Can I use a threaded rod on a wimshurst machine
On my Wimshurst machine which is built similar but not the same as http://steampunkworkshop.com/how-build-wimshurst-influence-machine-part-1, I'm using a threaded rod that comes out of the Leyden jar where my collecting comb and spark gap rod…
Reese Houseknecht
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- 9
0
votes
1 answer
Motion of an electron in a uniform electric field
An electron moves from negatively charged to positively charged terminal of a battery. When it does so, its electric potential energy decreases i.e it moves from high to low electric potential. But it is said that it moves from lower to higher…
user171403
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