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Calculate the amount ofwork done to dissociate a system of three charge 1muC,1muCand-4muC placed on the vertices of an equilateral triangle of side 10 cm. |
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Answer» SOLUTION :`q_(A)=1xx10^(-6)C=q_(B)` `q_(C)=-4XX10^(-6)C` `r=10cm=0.1m`  Work done `=W_(AB)+W_(BC)+W_(AC)` `=(1)/(4piepsilon_(0)r)[q_(A)q_(B)+q_(B)q_(C)+q_(C)q_(A)]` `=9xx10^(9)xx(1)/(0.1)[1xx1-4xx1-4xx1]xx10^(-12)` `=(-9xx10^(9)xx7xx10^(-12))/(0.1)` `=-.63J` |
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