Self-inductance is otherwise referred as inductance of the coil. It is defined as a property of the wire to oppose the change of current flow through it. Inductance of the copper wire is attained by elf-induced emf produced in the coil. Here the voltage is self induced as the magnetic field is created by the current itself imposes a voltage in the same circuit. Use online wire self inductance calculator to find the self inductance of the copper wire by entering diameter and length.