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Two point charges q_(1)andq_(2) are located at vecrandvecr_(2) respectively in an external electric field E. Obtain the experession for the total work done in assembling this configuration . |
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Answer» Solution :WORK DONE in briginging the charge `q_(1)` from infinity to position `r_(1)` `W_(1)=q_(1)V(r_(1))` Work done in bringing charge `q_(2)` to the position `r_(2)` `W_(2)=q_(2)V(r_(2))+(q_(1)q_(2))/(4piepsilon_(0)r_(12))` Hence , total work done in assembling the two charges `W=W_(1)+W_(2)` `=q_(1)V(r_(1))+q_(2)V(r_(2))+(q_(1)q_(2))/(4piepsilon_(0)r_(12))` |
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