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Question
Which one of the following objects does not contain a magnet?
Which one of the following objects does not contain a magnet?
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Solution
The correct option is A Electric bulb
Out of the given options the radio, television, and mobile phone have speakers in them. Speakers use magnets to convert electric current to vibrations that we sense as sound.
An electric bulb, however, has no need for a magnet.
Out of the given options the radio, television, and mobile phone have speakers in them. Speakers use magnets to convert electric current to vibrations that we sense as sound.
An electric bulb, however, has no need for a magnet.
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