A parallel-plate capacitor of area A and separation d contains two linear dielec

Question

A parallel-plate capacitor of area A and separation d contains two linear dielectric layers of thickness d/2. The upper layer (layer 1) has susceptibility X1, and the lower layer (layer 2) has susceptibility X2. The top conducting plate has charge +Q and the bottom has charge -Q.
A) calculate the displacement D(z) and the electric field E(z) in each layer in terms of Q,A,d, and X (suscept.)
B)calculate the potential difference V(d) - V(0) between the plates in the same terms.
C)Caluclate the total work W needed to move the total charge Q from the lower plate to the upper in the same terms. D) If X1=2 and X2=3 what fraction of the work in part c goes into stretching the dipoles? Express as a percentage.

Explanation / Answer

A parallel-plate capacitor of area A and separation d contains two linear dielec

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