Electrical field strength is a measure of the force experienced by a charged particle in an electric field. It is defined as the force per unit charge and is typically expressed in volts per meter (V/m). The strength of the electric field depends on the amount of charge and the distance from the charge creating the field. In practical terms, a stronger electrical field can exert a greater force on charged objects, influencing their movement. This concept is crucial in various applications, including capacitors, electric circuits, and electromagnetic fields, where understanding the behavior of charges is essential for effective design and operation.