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Question
A neutral rubber rod and a neutral piece of fur have equal amounts of negative and positive charge. When the fur is rubbed against the rod, a transfer of electrons occurs. The transfer of electrons and mass transfer respectively takes place from
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Solution
The correct option is B fur to rubber rod; fur to rubber rod
Answer is B.
On rubbing an rubber rod with fur, the electrons from the fur get transferred to the rubber rod. The fur now has a deficiency of electrons and so is positively-charged. On the other hand, the rubber rod has an excess of electrons and hence is negatively-charged.
In the above example, the fur undergoes positive electrification. It is to be noted that it is the electrons and not the protons that get transferred during positive (and negative) electrification.
Here, the transfer of electrons and mass transfer respectively takes place from fur to the rubber rod.
Answer is B.
On rubbing an rubber rod with fur, the electrons from the fur get transferred to the rubber rod. The fur now has a deficiency of electrons and so is positively-charged. On the other hand, the rubber rod has an excess of electrons and hence is negatively-charged.
In the above example, the fur undergoes positive electrification. It is to be noted that it is the electrons and not the protons that get transferred during positive (and negative) electrification.
Here, the transfer of electrons and mass transfer respectively takes place from fur to the rubber rod.
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