# Self-Inductance

Consider a coil consisting of N turns and carrying current I in the counterclockwise direction, as shown in figure. If the current is steady, then the magnetic flux through the loop will remain constant. However, suppose the current I changes with time, then according to Faradayâ€™s law, an induced e.m.f will arise to oppose the change. The induced current will flow clockwise if , and counterclockwise if . The property of the loop in which its own magnetic field opposes any change in current is called â€˜self-inductanceâ€™, and the e.m.f generated is called the self-induced e.m.f or back e.m.f, which we denote as ÎµL.

Magnetic flux through the current loop