Make your own working bell using electromagnet and other activity. How it works attach the crocodile clip with the bracket (part of kit) you will observe that your electric bell starts ringing. When we connect the crocodile plate to the, the circuit of the coil with the battery will be complete and the coil will create magnetic field. This magnetic field will attract the twist metal bracket will attract l- bracket. As the twist metal bracket move to the l-bracket the connection of metal bracket and l-bracket will be interrupted and the circuit will break. So the magnetic field will be disappeared and the metal bracket again comes to its original place. When it comes to its original place again it will contact with the l-bracket and the circuit will be completed and it will create the magnetic field in the coil and this cycle runs till the battery is connected to the socket. You can experiment on different bell to create different sounds. The framework is made of plastic material and other handmade parts. This product is designed for a demonstration purpose and single use. Apply your creativity while assembling. Assembly manual is provided with the kit. The project is for demonstration and informational purposes only. All of junior scientist products are unique and handmade. We work by designs and endeavour to create like products. However the very nature of being individually designed by hand gives raw finishing of the projects since it should look that students have created on its own.