ch22-p029 - 29. The smallest arc is of length L1 = r1 /2 =...

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length for each arc is λ = q/L where each charge q is specified in the figure. Following the steps that lead to Eq. 22-21 in Sample Problem 22-3, we find 3 12 net 22 01 02 03 0 (2sin45 ) (2sin 45 ) 444 2 Q E rrr R λ πε ° °° =++= which yields E net = 1.62 × 10 6 N/C . (b) The direction is – 45º, measured counterclockwise from the +
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