21. Length with n rounds in a radius and per unit length Solenoid A cylindrical shell whose radius R, thickness d (d

A long solenoid of radius a and number of turns per unit length n is enclosed by cylindrical shell of radius R. Thickness d(dltltR) and length L. A variable current i=i_(0) sin omega t flows through the coil. If the resistivity of the material of cylindrical shell is (rho) , find the induced current in the shell.

A long solenoid has n turns per unit length and radius a. A current I = I _ 0 sin omega t flows through it. A cylindrical vessel of radius R, length L, thickness d (d lt lt R) and resistivity rho is kept coaxially shown int he figure. Find the induced current in the outer cylindrical vessel.

A long solenoid has n turns per unit length and radius a. A current l = I_0 sin omega t flows through it. A cylindrical vessel of radius R, length L and thickness d (dltltR) and resistivity rho is kept co-axially. Find the induced current in the outer cylindrical vessel.

Find the total field energy of magnetic field stored per unit length inside a long cylindrical wire of radius R and carrying a current I.

The space between the two coaxial cylindrical shells of radius R_(1)andR_(2)(R_(1)ltR_(2)) is filled by a dielectric substance, whose dielectric constant varies with the distance from the axis as k=A//r^(3) . If the length of the cylindrical shells is l then find the capacitance of the system

A steady current I flows along an infinitely long hollow cylindrical conductor of radius R . This cylinder is placed coaxially inside an infinite solenoid of radius 2 R . The solenoid has a n turns per unit length and carries a steady current I . Consider a point p at a distance r from the common axis . The correct statement(s) is (are)

A steady current I flows along an infinitely long hollow cylindrical conductor of radius R . This cylinder is placed coaxially inside an infinite solenoid of radius 2 R . The solenoid has a n turns per unit length and carries a steady current I . Consider a point p at a distance r from the common axis . The correct statement(s) is (are)