Solenoid Basics Explained

The video tutorial explains solenoids and their operation, starting with permanent magnets and their magnetic fields. It demonstrates creating an electromagnet using wire and explores real-world solenoids by cutting one open. The tutorial concludes with a guide on building a basic solenoid, highlighting the differences between permanent magnets and electromagnets, and the practical applications of solenoids.

How can you visualize the magnetic field lines of a magnet?

What happens to the magnetic field when the direction of current in a solenoid is reversed?

Discuss the practical applications of solenoids in real-world devices.