Can you associate a vector with (a) the length of a wire bent into a loop (b) a plane area (c) a sphere.

Can you associate a vector with (a) the length of a wire bent into a l

1.	Can you associate a vector with (a) the length of a wire bent into a loop (b) a plane area (c) a sphere.
Answer» SOLUTION :(a) We cannot associate a vector with the length of a wire BENT into a loop. this is cause the length of the loop does not have a definite direction. (b) We can associate a vector with a plane AREA. Such a vector is called area vector and its direction is REPRESENTED by a NORMAL drawn outward to the area. (c) The area of a sphere does not point in any difinite direction. However, we can associate a null vector with the area of the sphere. We cannot associate a vector with the volume of a sphere.