The total number of turns and cross-section area in a solenoid is fixed. However, its length L is varied by adjusting the separation between windings. The inductance of solenoid will be proportional to :
The number of turns, cross-sectional area and length for four solenoids are given in the following table. The solenoid with maximum self inductance is :
A solenoid has fixed N number of turns and fixed radius a its length is given by l which can be varied its self-inductance is proportional to
When the number of turns and the length of the solenoid are doubled keeping the area of cross-section same, the inductance
For a solenoid keeping the turn density constant its length makes halved and its cross section radius is doubled then the inductance of the solenoid increased by :-
A long solenoid has self inductance. L. If its length is doubled keeping total number of turns constant then its new self inductance will be
Two solenoids of equal number of turns have their lengths and the radii in the same ratio 1:2. The ratio of their self inductances will be
Two solenoids of equal number of turns have their lengths and the radii in the same ratio 1:4. The ratio of their self inductances will be
The table lists the number of turns per unit length, current, and cross-sectional area for three solenoids. Rank the solenoids according to the magnetic energy density within them, greatest first.
