A vector field is expressed in the cylindrical coordinate system (s, ϕ, z) as,
\(\vec{F}=\frac{A}{s} \hat{s}+\frac{B}{s} \hat{z}\).
If this field represents an electrostatic field, then the possible values of A and B, respectively, are:
1
1 and 0
2
0 and 1
3
−1 and 1
4
1 and −1