GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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positive charges are transferred from the fur to the rod.
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negative charges are transferred from the rod to the fur.
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negative charges are created on the surface of the rod.
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negative charges are transferred from the fur to the rod.
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Detailed explanation-1: -Rod has its electron more tightly bound than fur. So, fur donates electrons to the rod while electrons from rod won’t come out. Due to excess of electrons in rod, it becomes negatively charged while the fur with lost electrons becomes deficient of electrons. Thus, fur becomes positively charged.
Detailed explanation-2: -On rubbing the ebonite rod with fur electrons move from fur to the ebonite rod and hence ebonite gets a negative charge.
Detailed explanation-3: -When an ebonite rod rubbed with fur it acquires negative charge and when glass rod is rubbed with silk cloth it acquires positive charge. Therefore, they will attract.
Detailed explanation-4: -When ebonite rod is rubbed with wool, ebonite rod acquires a negative charge while wool acquires a positive charge. Hence, they acquire equal and opposite charges.