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smarrrrttt
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IDENTIFY: The wire and hollow cylinder form coaxial cylinders. Problem 23.61 gives ( ) 1 ln( / ) ab E r V b a r = . SET UP: a =145×10−6 m , b = 0.0180 m . EXECUTE: 1 ln( ) ab E V b a r = and ln( (2.00 104 N C)(ln(0.018 m 145 10 6 m))0.012 m 1157 V. ab V
