In an electric bell, which is the electromagnet? The coil of electric wire wound in a piece of iron or the metal gong?
In an electric bell, when the electromagnet pulls the iron strip, it also breaks the circuit. The current through the coil stops flowing. In this case, will the coil remain an electromagnet? How does an electric bell ring then?
Why is soft iron used as the core of the electromagnet in an electric bell?
The core of an electromagnet or an electric bell is made up of soft iron and not steel because
Which of the following acts as the electromagnet in an electric bell?