* Transmits signals. Electric current can be used to transmit signals over long distances, such as in telephone lines and data cables.
* Charges batteries. Electric current can be used to charge batteries, which store electrical energy for later use.
* Produces heat. When electric current flows through a resistor, it produces heat. This can be used to provide warmth, such as in electric heaters, or to create light, such as in incandescent light bulbs.
* Creates magnetic fields. When electric current flows through a coil of wire, it creates a magnetic field. This can be used to power electric motors, which convert electrical energy into mechanical energy.
Electric current is essential to our modern world, and it has a wide variety of applications in both industry and everyday life.