8. (a) The individual magnitudes GE1and GE2are figured from Eq. 22-3, where the absolute value signs for q2are unnecessary since this charge is positive. Whether we add the magnitudes or subtract them depends on if GE1is in the same, or opposite, direction as GE2. At points left of q1(on the –xaxis) the fields point in opposite directions, but there is no possibility of cancellation (zero net field) since GE1is everywhere bigger than GE2in this region. In the region between the charges (0 < x< L) both fields point leftward and there is no possibility of cancellation. At points to the right of
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This note was uploaded on 01/25/2011 for the course PHYSICS 17029 taught by Professor Rebello,nobels during the Fall '10 term at Kansas State University.