The instrument panel in a car usually has a display in units of kilometres or miles per hour. the displayed value tells you which of the following properties of the car? magnitude of acceleration velocity and acceleration magnitude of velocity velocity

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.