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प्रश्न
Tell the odd one out. Give a proper explanation.
Find the odd one out and give its explanation.
विकल्प
Loud speaker
Microphone
Electric motor
Magnet
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उत्तर
Magnet
Explanation:
A standard magnet is a material that permanently produces its own magnetic field without needing an external power source. In contrast, loudspeakers, microphones, and electric motors are all devices that specifically rely on the principles of electromagnetism to function. Because those three convert between electrical and mechanical energy using electromagnetic fields, the simple magnet stands as the odd one out.
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