Capacitors with different dielectric constants

[Clyner791]

Two capacitors have the same plate separation, but one has square plates and the other has circular plates. The square plates are a length L on each side, and the diameter of the circular plate is L. The capacitors have the same capacitance because they contain different dielectric materials. The dielectric constant of the material between the square plates has a value of ksquare = 3.4. Calculate the dielectric constant kcircular of the material between the circular plates.

 

[SammyS]

Two capacitors have the same plate separation, but one has square plates and the other has circular plates. The square plates are a length L on each side, and the diameter of the circular plate is L. The capacitors have the same capacitance because they contain different dielectric materials. The dielectric constant of the material between the square plates has a value of k_square = 3.4. Calculate the dielectric constant k_circular of the material between the circular plates.

Hello Clyner791. Welcome to PF !

The following is a quote from the rules for posting in the Homework section of this Forum.

NOTE: You MUST show that you have attempted to answer your question in order to receive help. You MUST make use of the homework template, which automatically appears when a new topic is created in the homework help forums. Once your question or problem has been responded to, do not go back and delete (or edit) your original post.​

What have you tried?

Where are you stuck?