PHYSICS · Subjective · AP · Physics 2: Algebra-based · Electric Force Field and Potential · Electric Force Field and Potential
Problem
Three identical parallel-plate capacitors—X, Y, and Z—each carry the same magnitude of charge Q on their plates. Capacitor X has plate separation d and contains only air. Capacitor Y has plate separation 2d and contains only air. Capacitor Z has plate separation d but is completely filled with a dielectric material of constant κ=2. Rank the magnitudes of the electric fields EX, EY, and EZ from greatest to least. Provide a brief justification for your ranking.