A very long straight solenoid carries a current `i`. The cross-sectional area of the solenoid is equal to `S`, the number of turns per unit length is equal to `n`. Find the flux of the vector `B` through the end plane of the solenoid.

A very long straight solenoid has a cross section radius R . A number of turns per unit length is equal to n . Find the magnetic induction at the centre of the coil when a current I flows thougth it.

Find the mutual inductance of two long concentric solenoids for a length I. The area of cross-section of inner solenoid is A and number of turns per unit length are n_(1) and n_(2) .

Find the mutual inductance of two long concentric solenoids for a length l. The area of cross-section of inner solenoid is A and number of turns per unit length are n_(1) and n_(2) .

You are given a solenoid of length'l', number of turns per unit langth.'n' and area of cross section A.When a current'I' passes through it.What is the self- inductance of the solenoid?

In a long staright solenoid with cross-sectional radius a and number of turns per unit length n a current varies with a constant velocity dotI A//s . Find the magntidue of the eddy current field strength as a function of the distance r from the solenoid axis. Draw the appoximate plot of this function.

In a solenoid number of turns are N and a current I is passing through it. If diameter of the selenoid is D. find out the energy per unit length in the selenoid.

The magnetic field intensity inside a long solenoid is 1T. If the current per turn of the solenoid winding is 1A, find the number of turns in per meter.