ch23_p67 - 67(a For r < R E = 0(see Eq 23-16(b For r...

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(b) For r slightly greater than R , () 2 92 7 4 2 22 00 8.99 10 N m C 2.00 10 C 1 2.88 10 N C. 44 0.250m R qq E rR εε ×⋅ × =≈= = × ππ (c) For r > R , 2 2 4 2 0 1 0.250 m 2.88 10 N C 200 N C.
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