problem21_89

University Physics with Modern Physics with Mastering Physics (11th Edition)

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21.89: (a) From Eq. (22.9), i E ˆ 4 1 2 2 0 a x x Q πε + = . ˆ C) N 7858 ( ) m 025 . 0 ( m) (0.100 m) (0.100 C) 10 0 . 9 ( 4 1 2 2 9 0 i E - = + × - = - πε b) The electric field is less than that at the same distance from a point charge (8100 point 2 2 2 0 2 1 4 1 E Since C). N E x a x Q πε x = + - = –(Higher order terms).
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