Dielectric elastomers are used to create voltage-dependent capacitors. These elastomers contract when subject to the stresses induced by Coulomb forces between capacitor plates. Consider a pair of parallel plates with area A separated by distance d0 when no voltage is applied. A material with dielectric constant K and Young's modulus Y fills the space between the plates. Part A What compressive force is applied to the dielectric when the plates have opposite charges Q and −Q? Express your answer in terms of A, K, Q, and constant ϵ0

Dielectric elastomers are used to create voltage-dependent capacitors. These elastomers contract when subject to the stresses induced by Coulomb forces between capacitor plates. Consider a pair of parallel plates with area A separated by distance d0 when no voltage is applied. A material with dielectric constant K and Young's modulus Y fills the space between the plates. Part A What compressive force is applied to the dielectric when the plates have opposite charges Q and −Q? Express your answer in terms of A, K, Q, and constant ϵ0