How the elasticity of steel spring in electric bell?

The elasticity of the steel spring in an electric bell is crucial for its operation. When an electric current flows through the coil, it creates a magnetic field that pulls the armature towards the coil, compressing the spring. The spring's elasticity allows it to return to its original position once the current is switched off, enabling the armature to break the circuit and reset the bell mechanism. This cycle of compression and return is what produces the ringing sound of the bell.