Charge moving with uniform speed produce?

A charge moving with uniform speed produces a magnetic field but does not produce an electric field unless the charge is accelerating or changing direction.
Detailed Explanation:
1. Magnetic Field: When a charged particle moves with uniform speed (i.e., constant velocity), it generates a magnetic field due to its motion. According to Ampère's law and the Biot-Savart law, moving charges create magnetic fields. The strength and direction of this magnetic field depend on the velocity of the charge and the distance from the moving charge.
2. Electric Field: An electric field is created by a stationary charge. However, if the charge is moving with constant speed (i.e., no acceleration), the electric field in the surrounding space does not change.
3. No Radiation: If the charge is moving at constant speed, it does not radiate energy in the form of electromagnetic waves (this happens only when the charge is accelerated). Thus, the motion of the charge only produces a magnetic field without any radiation.
Final Answer:
A charge moving with uniform speed produces a magnetic field.