You can indicate how far an object is from the origin of a coordinate system by drawing an from the to the point that represents the object. This arrow represents the object’s . In general, the is the entire length of an object’s path, even if the object moves in many directions.

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.