When the number of turns in a coil is doubled without any change in the length of the coil, its self-inductance becomes

When the number of turns in a coil is doubled without any change in the length of coil its selfinductance becomes ________ .

If number of turns in a coil is quadrupled, then self-inductance will be:

The number of turns of a coil is doubled. How will its self-inductance be effected?