- #1
lorenz0
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- Homework Statement
- A parallel plate square capacitor with plates of area
at distance is connected to a battery until there is a potential difference of between its plates and then is disconnected from the battery. Then half of it is filled with a dielectric with dielectric constant and, in parallel, the other half is filled with a dielectric of dielectric constant .
Calculate the capacitance of the capacitor.
Also calculate the electrostatic field inside the capacitor.
- Relevant Equations
,
I considered the capacitor as two capacitors in parallel, so the total capacitance is
Since the parallel component of the electric field is continuous, the electric field inside the capacitor is .
Is this correct? I have a doubt; the fact that someone inserted the dielectric should have changed (lowered) the potential between the plates to on the left and on the right: how then can it be that (i.e. that ) across the capacitor?
Thanks
Since the parallel component of the electric field is continuous, the electric field inside the capacitor is
Is this correct? I have a doubt; the fact that someone inserted the dielectric should have changed (lowered) the potential
Thanks
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