Three identical metal plates of area $\mathrm{\prime }\mathrm{A}\mathrm{\prime }$ are at distance ${\mathrm{d}}_{1\mathrm{ }}$ & ${\mathrm{d}}_2$ from each other. Metal plate $\mathrm{A}$ is uncharged, while plate $\mathrm{B}$ & $\mathrm{C}$ have respective charges $+\mathrm{q}$ & $-\mathrm{q}.$ If metal plates $\mathrm{A}$ & $\mathrm{C}$ are connected by switch $\mathrm{K}$ through a consumer of unknown resistance, what energy does the consumer give out to its surrounding?
Assume ${\mathrm{d}}_1={\mathrm{d}}_2=\mathrm{d}$