Question

which one is the application if temporary ekectro magnet select from the following a=micro phone b=moving coil instruments c=cut Outs d=ear phone

Answer 1

Application of temporary electro magnet:

1. micro phone - temporary magenets are used.

2. moving coil instruments - permanent magents are used.

3. cut outs - it the banner (it is not application)

4. ear phones - uses a permanent magenet