Concept:

A stationary electric charge produces only an electric field in the space around it. However, when the charge is in motion, it constitutes an electric current, which generates a magnetic field in addition to its intrinsic electric field.

Formula:

$$ \mathbf{B} = \frac{\mu_0}{4\pi} \frac{q(\mathbf{v} \times \hat{\mathbf{r}})}{r^2} $$

Solution:

• Identify the state of the charge: It is in uniform motion.



• Recall that any charge inherently has an electric field.



• Apply the principle of electromagnetism: moving charges create magnetic fields.



• Therefore, it produces both fields simultaneously.

Why other options are incorrect:

Option A is true only for a stationary charge. Option B ignores the fundamental electric field that always exists around a charge. Option D is entirely false as charges always produce fields.