There is a repulsion between the two rings and we know that like charges repel each other. Since Ring B is getting repelled by A as it is floating above A at a certain height so the Ring B also would have the positive charge like Ring A.
There is a repulsion between the two rings and we know that like charges repel each other. Since Ring B is getting repelled by A as it is floating above A at a certain height so the Ring B also would have the positive charge like Ring A.
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