Question

can you associate with actors with ( a) the length of a wire bent into a loop ( b) a plane area.​

Answer 1

Answer:

One cannot associate a vector with the length of a wire bent into a loop. (b) One can associate an area vector with a plane area. The direction of this vector is normal, inward or outward to the plane area. ... However, an area vector can be associated with the area of a sphere.