Which one of the following does not depend on the magnetic effect of current for its working:
مندرجہ ذیل میں سے کون سا اس کے کام کرنے کے لیے کرنٹ کے مقناطیسی اثر پر منحصر نہیں ہے
Answer: Carbon microphone
Explanation
Carbon Microphone is a type of microphone, a transducer that converts sound to an electrical audio signal.
ND06-08-2023
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