A solenoid with N loops of wire tightly wrapped around an iron-core is carrying an electric current I. If the current through this solenoid is reduced to half, then what change would you expect in inductance L of the solenoid.

As a result of the flow of current through a solenoid, is there any chance of inducing an electric current in the same solenoid ?

The current is flowing through solenoid, then solenoid acting as what ?

The magnetic induction at the centre of a solenoid is B . If the length of the solenoid is reduced to half and the same wire is would in two layers the new magnetic induction is

The magnetic induction at the centre of a solenoid is B . If the length of the solenoid is reduced to half and the same wire is would in two layers the new magnetic induction is

If a rate change of current of 4As^(-1) induces an emf of 20mV in a solenoid, what is the self inductance of the solenoid?

A steady current of 1 amperes is passed through a long solenoid of length l and number of turns N. Obtain a relation for the self inductance of the solenoid.

A tightly- wound, long solenoid is kept with its axis parallel to a large metal sheet carrying a surface current. The surgace current through a width dl of the sheet is Kdl and the number of turns per unit length of the solenoid is n. The magnetic field near the centre of the solenoid is found to be zero. (a) find the current in the solenoid. (b) If the solenoid is rotated to make its axis perpendicular to the metal sheet, what would be the magnitude of the magnetic field near its centre?