Which formulation most accurately defines what an Actuator is? Select one alternative: actuator is a component that converts velocity and acceleration into electrical signal, to preform physical actions on/in our system and automate process actuator is a component that converts mechanical energy into electrical signal, to preform physical actions on/in our system and automate process actuator is a component that converts one form of energy into useful work (mechanical energy) to preform physical actions on/in our system and automate process actuator is a component that converts force into electrical signal, to preform physical actions on/in our system and automate process