P25_073 - k − 5 q 5 d = − 4 kq 2 d which simpli±es...

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73. The net potential (at point A or B ) is computed using Eq. 25-27. Thus, using k for 1 / 4 πε 0 , the diFerence is V B V A = µ kq 2 d + k ( 5 q ) 2 d µ kq d
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Unformatted text preview: + k ( − 5 q ) 5 d ¶ = − 4 kq 2 d which simpli±es to − q/ 2 πε in SI units (with d = 1 m)....
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