The self inductance of a straight conductor is zero.

In the alongside figure a straight conductor B is carrying current in the vertical downward direction. What will be the direction of magnetic field lines around the conductor?

The variation of inductive reactance (X_L) of an inductor with the frequency of the ac sources of 100 V and variable frequency is shown in the figure. Calculate the self inductance of the inductor.

How does the self inductance of an air coil change, when the number of turns in the coil is decreased?

The self inductance L of a solenoid of length l and area of cross section A, with a fixed number of turns N increases as

How does the self inductance of an air coil change, when an iron rod is introduced in the coil?