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  • The diaphragms of telephone are made up of
Multiple choice

The diaphragms of telephone are made up of

  1. Soft irons

  2. Magnet

  3. Thin sheet of any metal

  4. Steel

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The telephone diaphragm is made of soft iron because it is a ferromagnetic material that can easily respond to the fluctuating magnetic fields generated by the voice coil.

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