1. The problem statement, all variables and given/known data Use Gauss' law to find an expression for the electric field within a charged parallel plate capacitor with two layers of dielectric materials (?r1 and ?r2). (See attached image, this is for question 2a). 3. The attempt at a solution My approach would be to split the capacitor into two capacitors, each with r1 and r2 dielectrics - connected in series. Then the electric field across them both would be the sum of the electric fields across each one? So: For The first dielectric: The integral of: E1.dA = Q/(e0*er1) E1 = Q/(e0*er1*A) E2 = Q/(e0*er2*A) Therefore Etotal = (Q/(?0*A)) * (1/?r1 + 1/?r2) Am I taking the right approach? Any help would be appreciated, Thanks.