Chapter 2315(iii)Q==××=×−−λA80 0 10640 030 01 54 101210...CmmCejbg(iv)Q××=×A80 0 10400 030 00 960 101210.mCSection 23.6Electric Field LinesP23.38FIG. P23.38P23.39FIG. P23.39P23.40(a)qq1261813=−=−(b)qq12is negative, is positiveP23.41(a)The electric field has the general appearance shown. It is zeroat the center , where (by symmetry) one can see that the threecharges individually produce fields that cancel out.In addition to the center of the triangle, the electric field lines in thesecond figure to the right indicate three other points near themiddle of each leg of the triangle where E=0 , but they are moredifficult to find mathematically.
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