Can you associate vectors with:
(a) length of a wire bent into a loop
(b) a plane area
(c) a sphere? Explain.
(a) Yes, the direction of the length of a wire bent in the form of a loop is along the tangent to the loop.
(b) Yes, area is a vector whose direction is perpendicular to the plane of area.
(c) No, we cannot associate vector with the volume of the sphere.