

InterviewSolution
Saved Bookmarks
1. |
describe the work of an eletric bell with the help of a diagram . |
Answer» <p>An electric bell contains an electromagnet, consisting of coils of insulated wire wound round iron rods. When an electric current flows through the coils, the rods become magnetic and attract a piece of iron attached to a clapper. The clapper hits the bell and makes it ring.</p> | |