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A glass rod rubbed with slik is broughtcloseto twounchargedmetallic spheres in contact with eachother,inducingchargeson themas shown in Fig. Describe what happens when (i) the spheresare slightly separated and (ii) the glass rod is subsequently removedandfinally (iii) the spheres are separated far apart. |
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Answer» Solution :A glass road RUBBED with silk acquirespositivecharge. Whenthis rod is brought close to TWO uncharged metalllic spheres A and B in contact , negative chargeis inducedon the rightside of sphere B, Fig (i) When the spheresare SLIGHTLY separated , theinducedcharges are shownin Fig.(b).  (II) As the glass rod is removedsubsequently and separation is too small, the DISTRIBUTION of charges on A and B remainsthe sameas shown in Fig. (iii) When A and B are placed at a largedistance , the positiveand negative chargeson each flow and neutralise, so thatno chargeis left on A or B. |
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