Question

A vector is said to be solenoidal when its

(a) Divergence is zero

(b) Divergence is unity

(c) Curl is zero

(d) Curl is unity

I have been asked this question in an interview for job.

I'm obligated to ask this question of Vector Properties in section Vector Analysis and Applications of Electromagnetic Theory

Answer 1

The correct option is (a) Divergence is zero

To explain I would say: When the divergence of a vector is zero, it is said to be solenoidal /divergent-free.