What Is the Magnetic Field Inside a Long Solenoid?

[blueforest]

hi,
My homework is : Qualitative description of field due to long solenoid.
I think I post in wrong box, that box is about the calculus problem, right?
But I'm a new member and I don't know where to post my question. So if I'm wrong, I'm sorry, please answer me once and tell me the right box.
Thank you.

 

[Defennder]

For the question you have to think about how the individual induced H components for each loop of the solenoid add up constructively and destructively for both outside and inside the solenoid. I think it helps if you also assume that the coils of the solenoid are tightly wound.

 

[thomate1]

Hello,

No worries, as a scientist, I am happy to help you with your question. The field due to a long solenoid is a relatively simple concept to understand. A solenoid is a long, cylindrical coil of wire that is often used to create a magnetic field. When a current flows through the wire, a magnetic field is created around the solenoid.

The magnetic field inside a long solenoid is uniform and parallel to the axis of the solenoid. This means that the field lines are straight and evenly spaced throughout the interior of the solenoid. The strength of the field is directly proportional to the current flowing through the solenoid and the number of turns in the coil.

The field outside the solenoid is much weaker and is similar to the field of a bar magnet. The field lines curve around the solenoid, with the direction of the field determined by the direction of the current flow.

In summary, the field due to a long solenoid is uniform and parallel inside the solenoid, and weaker and similar to a bar magnet outside the solenoid. I hope this helps! And don't worry about posting in the wrong box, we are all here to help and learn together. If you have any further questions, please feel free to ask.