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प्रश्न
Find the odd one out.
विकल्प
Loudspeaker
Bar magnet/magnet
Electric motor
Microphone
उत्तर
Bar magnet/magnet
Explanation:
A loudspeaker, microphone and electric motor are electrical devices, whereas a bar magnet/magnet is a natural or artificial substance that is not an electrical device. Therefore, the bar magnet/magnet is the odd one out.
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