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Question
Which of the following does not contain a magnet?
Which of the following does not contain a magnet?
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Solution
The correct option is A Electric bulb
Out of the given options, radio, television, and mobile phone have speakers in them. A speaker uses magnets to convert electric current to vibrations that is sensed by us in the form of sound.
An electric bulb, however, has no need for a magnet.
Out of the given options, radio, television, and mobile phone have speakers in them. A speaker uses magnets to convert electric current to vibrations that is sensed by us in the form of sound.
An electric bulb, however, has no need for a magnet.
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