1. Magnetic field: The flow of electric current creates a magnetic field around the conductor. The strength and direction of the magnetic field depend on the magnitude and direction of the current.

2. Heat: When electric current passes through a conductor, it encounters resistance from the material. This resistance causes the conductor to heat up. The amount of heat produced depends on the magnitude of the current, the resistance of the conductor, and the time for which the current flows.

3. Light: When electric current passes through certain materials, such as tungsten filament in a light bulb, it can produce light. This phenomenon is known as incandescence.

4. Chemical changes: Electric current can induce chemical reactions in certain substances. This principle is used in various electrochemical processes, such as electroplating, electrolysis, and battery charging.

5. Mechanical work: Electric current can be used to power electric motors, which convert electrical energy into mechanical energy. Electric motors are widely used in various applications, from small appliances to industrial machinery.

6. Sound: Electric current can generate sound waves through devices such as speakers and piezoelectric transducers. Electric current is used in audio systems, musical instruments, and communication devices.