Solenoids

• If you twist a current carrying wire into a loop, this is called a solenoid

• A solenoid reinforces the magnetic field down the center of the coil, creating a stronger and more uniform magnetic field compared to a straight wire.

• The more loops = the stronger the magnetic field

• The stronger the current, the stronger the magnetic field

A solenoid effectively transforms electrical energy into magnetic energy, which can be harnessed in various applications such as electromagnets, inductors, and relays.