What is self induction ?

Magnetic flux of 5 microweber is linked with a coil when a current of 1 mA flows through it. What is self inductance of the coil ?

What is self Inductance of a coil ? Define coefficient of self Induction.

What is the self inductance of a coil, in which magnetic flux of 40 milliweber is produced when 2 A current flows through it?

Two coils of self inductance 1 H and 3H are connected in series to support each other. Their mutual inductance is 6H. What is the self inductance of the combination ?

What is the self inductance of a coil which produces, self induced emf of 5V, when the current changes from 3A to 2A in one millisecond ?

A solenoid of radius 3 cm and length 1 m has 600 turns per metre. What is its self inductance? Will the value of self inductance change if is would on an iron piece?