Question

Which one is the application of temporary electro magnet select from the following

Answer 1

Temporary electromagnets are mostly used in electric motors and telephones, and they can be made with the help of pins and paper clips.

Applications of temporary electro magnets are as follow:

Microphone can be made with the temporary electromagnet, moving coil instruments are designed with permanent electromagnet.

Cutouts are a banner and there is no magnetic field in this area, and earphone is also designed with electromagnet.  

Answer 2

Temporary electromagnets are used generally in Motors and TVs.

You can choose the required option, since options are not given. But objects like speakers, earphones, etc. uses temporary electromagnet.