Definition:Static Equilibrium

Definition

Static equilibrium is the state of a system in which the following three criteria are met:

$(1): \quad$ The sum of all the forces on the system is zero

$(2): \quad$ The sum of all the torques on the system is zero

$(3): \quad$ The bodies in the system are at rest.

Also see

• Results about static equilibrium can be found here.

Sources

• 1990: I.S. Grant and W.R. Phillips: Electromagnetism (2nd ed.) ... (previous) ... (next): Chapter $1$: Force and energy in electrostatics: $1.3$ Electric Fields in Matter: $1.3.3$ The macroscopic electric field