Yes, an electric current can generate electromagnetic waves. When an electric current flows through a conductor, it creates a magnetic field around the conductor. This magnetic field is constantly changing as the current flows, and this changing magnetic field generates an electric field. The electric field and magnetic field together form an electromagnetic wave, which can propagate through space.

The strength of the electromagnetic wave depends on the strength of the electric current and the frequency of the current. The higher the current and the higher the frequency, the stronger the electromagnetic wave will be.

Electromagnetic waves are used in a wide variety of applications, including radio, television, cell phones, and microwaves.