Consider the self-inductance per unit length of a solenoid at its centre and that near its ends. Which of the two is greater?

Consider the energy density in a solenoid at its centre and that near its ends. Which of the two is greater?

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?

A solenoid have self inductance 2H. If length of the solenoid is double having turn density and area constant then new self inductance is :-

A long solenoid has 800 turns per meter length of solenoid. What is the magnatic induction at the end of the solenoid if it carries a current of 2.5 A?

The self inductance of a solenoid of length L, area of cross-section A and having N turns is-

If the number of turns per units length of a coils of solenoid is doubled , the self- inductance of the soleniod will