Magnetic field `B` along the axis of a long solenoid is given by

The magnetic field at a point on the axis of a long solenoid having 5 turns per cm length when a current of 0.8 A flows through it is

The magnetic field on the axis of a long solenoid having n turns per unit length and carrying a current is

The correct curve between the magnetic induction (B) along the axis of a along solenoid due to current flow i in it and distance x from one end is -

Derive an expression for the magnetic field along the axis of an air-cored solenoid, using Ampere's circuital law. Sketch the magnetic field lines for a finite solenoid. Explain why the field at the exterior mid point is weak while at the interior it is uniform and strong.

Magnetic field on axis of circular loop & solenoid | Field due to moving charge

A long wire carries a current of 20A along the directed axis of a long solenoid. The field due to a solenoid is 4mT . Find the resultant field at a point 3mm from the solenoid axis.

The magnetic field intensity due to a long solenoid at its end is

Magnetic field inside a long solenoid |Questions |Toroid