In a region of space where the electric field is axial, suppose that $E_{s}=C$, where $C$ is a positive constant. Is the charge density $\rho$ in this region positive, negative, or zero? (Note: $\rho$ might depend on $\mathrm{s}$ in this region.)
A) Positive
B) Negative
C) Zero
D) This is impossible.

Question

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The Answer of In a region of space where the electric field is axial, suppose that $E_{s}=C$, where $C$ is a positive constant. Is the charge density $\rho$ in this region positive, negative, or zero? (Note: $\rho$ might depend on $\mathrm{s}$ in this region.)
A) Positive
B) Negative
C) Zero
D) This is impossible.

In a Region of Space Where the Electric Field Is Es=CE_{s}=CEs​=C

In a Region of Space Where the Electric Field Is $E_{s}=C$