For the current-carrying solenoid as shown below, draw magnetic field lines and giving reason

For the current-carrying solenoid as shown below, draw magnetic field lines and giving reason explain that out of the three points A, B and C at which point the field strength is maximum and at which point it is minimum.

The magnetic field strength is maximum at point A and is minimum at point C because magnetic field is strong where magnetic field lines are crowded and is weak where magnetic field lines are far apart.

Thanks for the answer Prasanna