The magnetic field lines inside a current carrying long solenoid are in the form of

The magnetic field inside a long straight solenoid-carrying current

The magnetic field produced by a current-carrying straight wire at a point outside the wire depends

The rule that determines the direction of a magnetic field produced around a straight conductor carrying current is :

If the speed of a moving magnet inside a coil increases, the electric current in the coil

Which one of the following statements regarding a current-carrying solenoid is not correct?