A current `I` flows in a long single layer solenoid with cross-sectional radius `R`. The number of turns per unit length of the solenoid equals `n`. Find the limiting current at which the winding may ruputure if the tensile strength of the wire is equal to `F_(l i m)`.

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.

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.

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.

A long solenoid has a radius a and number of turns per unit length is n . If it carries a current i, then the magnetic field on its axis is directly proportional to

A long solenoid has a radius a and number of turns per unit length is n . If it carries a current i, then the magnetic field on its axis is directly proportional to