An electro-mechanical energy conversion device is one which converts _______
Options:
A .  Electrical energy to mechanical energy only
B .  Mechanical energy to electrical energy only
C .  All of the mentioned
D .  None of the mentioned
Answer: Option C
The operating principles of electrical to mechanical and mechanical to electrical conversion devices are similar, hence, the common name electro-mechanical device.However, their structural details differ depending on their function.
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