2). Electrostatic equilibrium(静电平衡) When the charges in the conductor are at rest and the field never changes, the conductor is in the electrostatic equilibrium e eNo charge moves!2）. Electrostatic equilibrium（静电平衡） When the charges in the conductor are at rest and the field never changes, the conductor is in the electrostatic equilibrium. e e e e e e e e No charge moves!