Solenoid is a type of electromagnet formed by wrapping a insulated wire coil around a soft iron.

Any two uses of the solenoid are:

1. Electric bells :Solenoids are used in electric bells to produce sound. When current flows through the solenoid, it creates a magnetic field that attracts a metal hammer towards the bell. This action causes the hammer to strike the bell, producing a ringing sound. The solenoid can be turned on and off quickly, allowing for repeated ringing.
2. Locking Mechanisms :Solenoids are commonly found in locking mechanisms for electronic door locks and security systems. When energized, the solenoid moves a plunger or bolt to engage or disengage the lock, providing secure access control.