Physics
Name the material used for making the armature of an electric bell. Give a reason for your answer.
Magnetism
85 Likes
Answer
Soft iron is used for making the armature of an electric bell because it acquires magnetic properties only when an electric current flows through the solenoid and loses the magnetic properties as soon as the current is switched off.
Answered By
56 Likes
Related Questions
State two advantages of an electromagnet over a permanent magnet.
How is the working of an electric bell affected, if alternating current is used instead of direct current?
How is an electromagnet made? Name two factors on which the strength of the magnetic field of an electromagnet depends.
You are required to make an electromagnet from a soft iron bar by using a cell, an insulated coil of copper wire and a switch. (a) Draw a circuit diagram to represent the process. (b) Label the poles of the electromagnet.