Explain the term permittivity and how this affects force

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Permittivity is a measure of how an electric field interacts with a dielectric material, influencing the force between charged objects. It is defined by the equation that relates electric field strength to charge and distance, specifically in Coulomb's Law. The absolute permittivity of a material determines how much electric field is reduced within that medium, affecting the force experienced by charges. Dielectric materials are utilized in capacitors due to their ability to store electrical energy more efficiently by increasing capacitance. Understanding permittivity is essential for grasping concepts in electrostatics and engineering applications.
skanecfc
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Hey everyone
I just started an engineering course and have been given a few questions but I am struggling with this one as i feel that i have not included all the info that should be there. Can someone tell me briefly what they would explain the term permittivity as and how they think it would affect force
 
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welcome to pf!

hey skanecfc! welcome to pf! :wink:

why not show us the info you have included, so that we can help with suggestions? :smile:
 
I put Coulomb's Law and the formula F=K (Q1Q2 over Resistance Squared)
Where K is a constant and its formula
The electric permittivity and its equation
Absolute permittivity
and lastly i put the reasons why dielectric materials are used in capacitors

have i missed anything?
 
Thread 'Correct statement about size of wire to produce larger extension'

Thread 'Correct statement about size of wire to produce larger extension'

The answer is (B) but I don't really understand why. Based on formula of Young Modulus: $$x=\frac{FL}{AE}$$ The second wire made of the same material so it means they have same Young Modulus. Larger extension means larger value of ##x## so to get larger value of ##x## we can increase ##F## and ##L## and decrease ##A## I am not sure whether there is change in ##F## for first and second wire so I will just assume ##F## does not change. It leaves (B) and (C) as possible options so why is (C)...
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