What is self induction?

You are given a solenoid of length'l', number of turns per unit langth.'n' and area of cross section A.When a current'I' passes through it.What is the self- inductance of the solenoid?

What is self-incompatibility?

The phenomenon of generation of induced emf in a coil due to the change in current throught it Is known as self-induction. Define self inductance of a coil.

Give dimensional formula of self inductance?