Working of an electromagnet
Answers
Explanation:
An electromagnet is a magnet that runs on electricity.
an electromagnet is pretty simple. It consists of a length of conductive wire, usually copper, wrapped around a piece of metal. Like Frankenstein’s monster, this seems like little more than a loose collection of parts until electricity comes into the picture. But you don’t have to wait for a storm to bring an electromagnet to life. A current is introduced, either from a battery or another source of electricity, and flows through the wire. This creates a magnetic field around the coiled wire, magnetizing the metal as if it were a permanent magnet. Electromagnets are useful because you can turn the magnet on and off by completing or interrupting the circuit, respectively.
Follow me if it was helpful.....
Answer:
When the circuit is complete and the the current passes through the coil, the electromagnet starts behaving like a magnet and attracts the armature. When the armature moves towards the electromagnet ,the hammer connected to it, hits the gong and produces sound. When the armature is pulled towards the electromagnet looses contact with the adjustment screw and the circuit breaks. The electromagnet gets demagnetised and there is no attraction between the electromagnet and the armature. The armature now rest in its original position and touches the screw again to complete the circuit. This process is repeated as long as the switch is pressed.