(Ill) Suppose in Example 21-11 that x = 0.250 m,Q = 3.15 nC, and that the uniformly charged wire is only6.50 m long and extends along the y axis from y = -4.00 mto y = +2.50 m. (a) Calculate Ex and Ey at point P.(b) Determine what the error would be if you simply usedthe result of Example 21-11, E = A/277e0*. Express thiserror as (Ex - E)/E and Ey/E.

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