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hhh79bigo
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Total energy of a dielectric sphere please help!
I have a problem that I can not do after searching the net and looking through my notes and textbook. I think it is a basic electomagnetic field question but i just can't get my head around it.
The question is:
The electric field E inside a dielectric sphere placed between the plates of a large parallel-plate capacitor is uniform. Given that the sphere has a relative dielectric constant "epsilon"(r) and radius r, find an expression for the total electric energy of the sphere.
I was considering using the relationship
U=1/2*"EPSILON(0)"E^2
Where U is the energy density and "EPSILON(0)" is the permitivity of free space and E is the electric field.
But I don't know how to take this to get an expression for the total energy of the dielectric.
Can anyone help me? I would really appreciate it
Thanks
hhh79bigo
I have a problem that I can not do after searching the net and looking through my notes and textbook. I think it is a basic electomagnetic field question but i just can't get my head around it.
The question is:
The electric field E inside a dielectric sphere placed between the plates of a large parallel-plate capacitor is uniform. Given that the sphere has a relative dielectric constant "epsilon"(r) and radius r, find an expression for the total electric energy of the sphere.
I was considering using the relationship
U=1/2*"EPSILON(0)"E^2
Where U is the energy density and "EPSILON(0)" is the permitivity of free space and E is the electric field.
But I don't know how to take this to get an expression for the total energy of the dielectric.
Can anyone help me? I would really appreciate it
Thanks
hhh79bigo