Question

The magnetic field lines inside a current carrying solenoid are
circular
circular, but they do not cross each other
along the axis and parallel to each other
all of these​

Answer 1

Answer:

Since the magnetic field lines form a closed loop, the field lines near to ends of the solenoid will be circular. So we can conclude that the magnetic field lines inside the solenoid are parallel to the axis of the solenoid but near to the ends of the solenoid, they will be circular.