Consider a uniformly wound solenoid having N turns and length L. The core of the solenoid is air. Find the inductance of the solenoid of N = 200, L = 20 cm and cross-sectional area, A = `5 cm^2`. Calculate the induced emf `e_L`, if the current flowing through the solenoid decreases at a rate of `60 A//s`.

The self inductance L of a solenoid of length l and area of cross-section A, with a fixed number of turns N increases as

A solenoid of length 100 cm having 150 turns carries a current of 3A. Find the magnitude of magnetic field:- in the interior of the solenoid,

A solenoid of 150 cm length having 300 turns carries a current of 4A. Find the magnitude of the magnetic field inside the solenoid.

A long solenoid consisting of 1.5xx10^3 turns//m has an area of cross-section of 25 cm^2 . A coil C, consisting of 150 turns (N_c) is wound tightly around the centre of the solenoid. Calculate for a current of 3.0 A in the solenoid (a) the magnetic flux density at the centre of the solenoid, (b) the flux linkage in the coil C, (c) the average emf induced in coil C if the current in the solenoid is reversed in direction in a time of 0.5 s. (mu0=4pixx10^-7 T.m//A) .

A solenoid of length 100 cm having 150 turns carries a current of 3A. Find the magnitude of magnetic field:- at one end of solenoid.

A solenoid 3.142 m long and 5.0 cm in diameter has two layers of windings of 500 turns each and carries a current of 5 A. Calculate the magnetic induction at its centre along the axis.

A long solenoid with 15 turns per cm has a small loop of area 2.0cm^2 placed inside the solenoid normal to to its axis.If the current carried by the solenoid changes steadily from 2.0A to 4.0A in 0.1s, what is the induced emf in the loop while the current is changing?

A solenoid of length pi m and 5 cm in diameter bas winding of 1000 turns and carries a current of 5A. Calculate the magnetic field at tits centre along the axis